When researchers selectively bred guppies for large brains, which of these occurred? A. The guppies developed richer social behaviors. B. The guppies decreased their appetite. C. The guppies decreased...

When researchers selectively bred guppies for large brains, which of these occurred?

A. The guppies developed richer social behaviors.

B. The guppies decreased their appetite.

C. The guppies decreased their reproduction.

D. The guppies increased their activity levels.