How do ghrelin and CCK influence hunger

A)  Ghrelin and CCK both suppress hunger. 
B)  Ghrelin suppresses hunger, and CCK stimulates hunger. 
C)  Ghrelin stimulates hunger, and CCK suppresses hunger. 
D)  Ghrelin and CCK both stimulate hunger.

Ghrelin

A hormone produced in the stomach that stimulates appetite, promoting the feeling of hunger.

CCK

CCK, or Cholecystokinin, is a hormone and neurotransmitter involved in digestion and inducing feelings of satiety, released by the intestines after eating.

Hunger

The physical sensation or condition caused by the need or desire to eat food.