The Hormone Leptin

The hormone leptin:

A) is associated with increased food intake when brain levels of the chemical increase.
B) creates a positive energy balance when blood levels of the chemical decrease, which, in turn, triggers eating behavior.
C) is secreted by adipose tissue that signals the hypothalamus, regulating hunger and eating behavior.
D) is also called the "hunger hormone" because its presence in the cells lining the stomach strongly stimulates appetite.