Biology

The correct answer is: E.No genetic drift (bottleneck effect).

Explanation:

The bottleneck effect occurs when a population size is drastically reduced due to an event (like hunting, in this case), resulting in a loss of genetic diversity. The Northern elephant seals experienced such a bottleneck in the late 19th century, where their population was reduced to as few as 20 individuals. This drastically reduced their genetic variation, which violates the Hardy-Weinberg assumption of no genetic drift.

The other assumptions are not directly violated in this situation:

A.No mutations: This assumption is not specifically violated by the bottleneck event itself....