Appetite Control Can Be Achieved Via Which of the Following

Appetite control can be achieved via which of the following pharmacological means?

A) Rimonabant, which is a cannabinoid antagonist in widespread use
B) Lorcarserin, a drug that activates the MC4R melanocortin receptor and that produces significant results
C) Drugs that activate serotonin 5-HT2C receptors on POMC neurons and also cause mood problems
D) PYY_?3-36 receptor antagonists via nasal spray