Refer to the Figure to Interpret the Relative Contribution of Various

Refer to the figure to interpret the relative contribution of various risk factors toward the possible local extinction of a species. Which of the following would be most likely to cause the local extinction of a population of kelp with fewer than three individuals?

A) Random changes in birth or death rates
B) Low genetic variation associated with small populations
C) A change in temperature, water quality, or sunlight availability
D) Disadvantages associated with low population density
E) A complex interaction between demographic variation and genetic effects