Troy Finds It Very Hard to Lose Weight

Multiple Choice

Troy finds it very hard to lose weight.No matter how often he exercises,he keeps gaining weight instead of losing it.He thinks that he has a genetic predisposition to be overweight,
Which has most likely made him sensitive to the hunger-promoting effects of

A) ghrelin.
B) leptin.
C) the hypothalamus.
D) the gustatory cortex.