Danielle Is a Woman of Normal Weight,whereas Ron Is an Obese

Danielle is a woman of normal weight,whereas Ron is an obese man.Whenever they go out to dinner together,Ron always eats more food.Ron,a psychology major,correctly explains this difference in food intake by pointing out that

A) males release leptin at a slower rate than females.
B) he has more fat cells than Danielle and he is not satiated until all his fat cells are filled.
C) the ventromedial hypothalamus of his brain induces in him an urge to take in large portions of food.
D) males and females have different levels of the hormone cholecystokinin.