The examination or observation of one's own mental and emotional processes.
"quiet introspection can be extremely valuable"
Population decline causes an extreme genetic drift called a bottleneck effect. The correct option is C.
<h3>What is bottleneck effect?</h3>
The bottleneck effect describes how a population's size is reduced and then increased, affecting the distribution of genetic variation among its members.
It happened when the population reduced severely. Events like natural disaster or decline of the population.
Thus, the correct option is C) bottleneck effect.
Learn more about bottleneck effect
brainly.com/question/26281510
#SPJ1
Kinda weird. But I have no feelings over it :)