Students in a biology class ran an experiment on a type of flowering plant. Their goal was to find the optimal time in the plant's life for flowering. What time period will provide the most flowering plants? Use Table 1-1 to determine your answer.


day Number of Plants Flowering
2 6
4 12
6 18
8 22
10 8


a
8–9 days
b
7–8 days
c
5–6 days
d
6–7 days