The Following Experiment Is Used for the Corresponding Question(s)

The following experiment is used for the corresponding question(s) .
-Refer to the accompanying figure. Recall that eggs from the same female were exposed to each of the eight treatments used. This aspect of the experimental design tested which of the following hypotheses?

A) The longer day lengths of summer trigger the development of twiglike caterpillars.
B) Differences in air pressure, due to elevation, trigger the development of different types of caterpillars.
C) Differences in diet trigger the development of different types of caterpillars.
D) The differences are genetic. A female will either produce all flowerlike caterpillars or all twiglike caterpillars.