All of the following are true of basal metabolic rate EXCEPT
A. an active exerciser has a higher basal metabolic rate than a non-exerciser
B. a male has a higher basal metabolic rate than a female
C. a 20-year-old has a higher basal metabolic rate than a 40-year-old
D. a person with more body fat has a higher basal metabolic rate than a person with less body fat