Each of 30 students selected exactly one workshop for a weekend program. The table shows the students' selections.
| Workshop | Saturday | Sunday | Total |
|---|---|---|---|
| Design | 9 | 6 | 15 |
| Coding | 3 | 12 | 15 |
| Total | 12 | 18 | 30 |
A student is selected at random from the students who selected a Saturday workshop. Which choice is the probability that the student selected the design workshop?