SAT Command of Evidence Question 57 | Free SAT Prep | Aniko

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Question 57·Hard·Command of Evidence

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Transportation-Sector $CO_2$ Emissions by Vehicle Type (Four Countries and Overall)

	Cars	Trucks	Buses	Motorcycles
Country A	$30\%$	$55\%$	$10\%$	$5\%$
Country B	$25\%$	$60\%$	$10\%$	$5\%$
Country C	$40\%$	$45\%$	$10\%$	$5\%$
Country D	$35\%$	$50\%$	$8\%$	$7\%$
Overall (all four countries combined)	$32\%$	$52\%$	$10\%$	$6\%$

In their analysis of greenhouse-gas data from four nations, Sheng Li and colleagues remark that trucks “account for the largest share of transportation emissions in every country studied and make up more than half of total emissions across all four nations combined.”

Which choice best describes data from the table that support Li and colleagues’ remark?

For command-of-evidence questions tied to a table, first restate the claim as a checklist of required facts (here: trucks are highest in every country; trucks are $>50\%$ overall). Then confirm each item directly in the table and choose the option that explicitly mentions evidence for all required parts—not just a true detail from one row.

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Break the remark into parts

Li and colleagues are saying two things about trucks. Identify what they say about (1) trucks in each individual country and (2) trucks in the overall combined total.

Compare trucks to other vehicles in each country

For each country (A–D), look across the row and see how the truck percentage compares to cars, buses, and motorcycles. Are trucks always higher?

Look closely at the Overall row

Check the "Overall" row: what percentage of emissions comes from trucks there, and how does that compare to $50\%$ ?

Pick the choice that covers BOTH parts

Eliminate any choice that supports only one part of the remark (only individual countries or only the overall total).

Step-by-step Explanation

Parse what Li and colleagues are claiming

Li’s remark makes two separate claims:

In every country studied, trucks have the largest share of transportation emissions.
When you combine all four nations, trucks make up more than half of total transportation emissions.

A supporting answer choice must be backed up by table data for both parts.

Verify the "largest share in every country" claim

Compare trucks to the other vehicle types in each row:

Country A: Trucks $55\%$ vs. Cars $30\%$ , Buses $10\%$ , Motorcycles $5\%$ → trucks are highest.
Country B: Trucks $60\%$ vs. Cars $25\%$ , Buses $10\%$ , Motorcycles $5\%$ → trucks are highest.
Country C: Trucks $45\%$ vs. Cars $40\%$ , Buses $10\%$ , Motorcycles $5\%$ → trucks are highest.
Country D: Trucks $50\%$ vs. Cars $35\%$ , Buses $8\%$ , Motorcycles $7\%$ → trucks are highest.

So the table supports that trucks are the largest share in every country.

Verify the "more than half overall" claim

Look at the Overall (all four countries combined) row:

Trucks are $52\%$ overall.

Since $52\% > 50\%$ , the table supports that trucks make up more than half of total emissions across all four nations combined.

Select the choice that states both supporting facts

The correct choice must (1) state that trucks are the highest percentage in each country and (2) state that trucks are $52\%$ overall.

The option that does both is:

In every country listed, trucks have the highest percentage of emissions, and in the Overall row trucks account for $52\%$ of emissions.

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Step-by-step Explanation

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Step-by-step Explanation