Explain the difference between set point and basal metabolic rate.
A) Set point is the body's weight-regulating mechanism, while basal metabolic rate is the energy expended at rest.
B) Set point is the energy expended at rest, while basal metabolic rate is the body's weight-regulating mechanism.
C) Both set point and basal metabolic rate refer to weight regulation.
D) Set point and basal metabolic rate are unrelated concepts.