Some lizards can undergo both sexual and asexual reproduction. being able to reproduce asexually benefits the organism during times when mates are hard to find. under what circumstances would asexual reproduction be most beneficial?

a the species finds its life span is increasing rapidly.
b the species finds itself falling prey to a new and well-adapted predator.
c the species needs to adapt to a dwindling source of food.
d the species needs to develop resistance to a new type of disease.