What Is the Probable Biological and Evolutionary Function for a Species

Multiple Choice

What is the probable biological and evolutionary function for a species of desert lizards to return to female-only reproduction?

A) This species is probably going extinct.
B) This is not at all unusual since most reptiles are asexual.
C) The desert is uniform, and variation is of little or no advantage and a waste in energy.
D) Such a switch in mating behavior is easily understood as a crossing-over in chromosomes.