Consider the Distinction Between the Set Point and the Settling

Consider the distinction between the set point and the settling point in the text's discussion of hunger,eating,and obesity.Which statement is MOST accurate?

A) The set point is essentially a physiological concept; the idea of the settling point takes the social and cultural environment into account to a greater extent.
B) The settling point is essentially a physiological concept; the idea of the set point takes the social and cultural environment into account to a greater extent.
C) Both the concept of the set point and that of the settling point are essentially physiological concepts.
D) The concept of a set point is less rigid than the concept of a settling point.