Which of the following factors is not one that increases the likelihood of population extinction?
A. Small population size is a factor contributing to a population's extinction.
B. Isolation of a population from sources of immigrants is a factor contributing to a population's extinction.
C. Isolation of a population from sinks of immigrants is a factor contributing to a population's extinction.
D. Low resource availability is a factor contributing to a population's extinction.
E. Lack of genetic diversity is a factor contributing to a population's extinction.
Answer: C