Purple prairie clover seeds have hard outer coats that can delay germination. Researchers divided equal groups of seeds among four conditions: no pretreatment, soaking in warm water, nicking the seed coat, and combining the soaking and nicking treatments. They recorded the percentage of seeds that germinated and the percentage of the original seeds that produced seedlings still alive after 90 days. Based on the graph, the researchers concluded that no single pretreatment was most effective at both stages measured.
Which choice most effectively uses data from the graph to support the underlined claim?