Which Is an Example of Demographic Stochasticity

Multiple Choice

Which is an example of demographic stochasticity?
I. increased moose mortality when the population exceeds carrying capacity
II. variation in death rate of mice due to chance differences between individuals
III. increases and decreases in seed production due to changes in rainfall

A) I only
B) II only
C) III only
D) I and II only
E) II and III only