Evidence that parthenogenic whiptail lizards are derived from sexually reproducing ancestors includes

A)the requirement for male-like behaviours in some females before their partners will ovulate.
B)the development and then regression of testes prior to sexual maturation.
C)the observation that all of the offspring are haploid.
D)dependence on favourable weather conditions for ovulation to occur.
E)the persistence of a vestigial penis among some of the females.