2. To organize this text, the author divides it into sections with subheadings. What is described in the section with the subheading "Two Answers"? A. answers scientists have come up with about why some species of cave fishes are blind

B. answers scientists have come up with about why some caves receive no light from the sun

C. answers scientists have come up with about why some crustaceans have evolved to live without light

D. answers scientists have come up with about why regressive evolution occurs in salamanders