Which Statement Provides the Best Evidence That Parthenogenic Whiptail Lizards

Which statement provides the best evidence that parthenogenic whiptail lizards evolved from sexually reproducing ancestors?

A) some lizards engage in male-like behaviors before their partners ovulate
B) the development and then regression of testes prior to sexual maturation
C) the observation that all of the offspring are haploid
D) the persistence of a vestigial penis among some of the females