DrMak Suggests That When Food Is Readily Available,people Tend to Overeat

Dr.Mak suggests that when food is readily available,people tend to overeat rather than show restraint.He also states that humans don't have a good mechanism for determining how much food is "enough" and instead we tend to eat until we are uncomfortable rather than until we eat enough to sustain our immediate needs.Which approach is Dr.Mak's view most consistent with

A)  evolutionary approach
B)  drive-reduction approach 
C)  environmental cues approach
D)  biological approach