'Niche Construction' Describes

'Niche construction' describes:

A) shelter building behavior engaged in by certain species (e.g., beavers, humans) .
B) when organisms, through biological and behavioral processes, act upon the environmental niches that they occupy just as those niches act upon them.
C) when individual members of a species adapt to the environment.
D) a change in frequency of genes in a population's gene pool.
E) when a species shifts from reliance on one food source to another.