Apopulation of purple gorillas feeds entirely on plants. but some of these gorillas are good at digesting plant a, while others are good at digesting plant b. still other purple gorillas are good at digesting plant c. what might be an advantage of a single population of animals, such as the purple gorilla, having a very large amount of variability surrounding certain traits? a. there is no evolutionary advantage to this situation. b. it increases the chance that some members of the population will survive under changing environmental conditions. c. it makes it more difficult for poachers to hunt them. d. it makes it less likely that the population will split into different species, when selective pressures are increased.