The four butterflies in the illustrations represent the offspring in the F, generation. Which statement is best supported by the phenotypes of these offspring?

A. The F1 generation is composed only of males

B. Two of the offspring in the F2 generation will not be able to reproduce.

C. The F1 generation is the result of a dihybrid cross:

D. Two of the offspring in the F1 generation will experience a spontaneous mutation.​