Imagine You Are Standing in a Field and You See

Imagine you are standing in a field and you see a group of butterflies. You notice that the butterflies are not identical to each other even though they are all from the same species and the same population. Which of the following statements explains the variation you see in the butterflies?

A) differences that result from variation in the genetic material among the butterflies
B) differences that result from variation in the environment
C) differences in the type of food each butterfly consumes
D) differences in the temperature in which each butterfly developed