Which Feature of Honeybees Probably Arose Under the Mutual Evolutionary

Which feature of honeybees probably arose under the mutual evolutionary influence of insect-pollinated flowering plants?

A) possessing three pairs of legs
B) possessing a metabolism whose rate is influenced by environmental temperature
C) possessing an exoskeleton made of chitin
D) possessing an abdomen that is densely covered with short bristles
E) possessing an ovipositor modified as a non-reusable stinger