Identify below the more accurate description of the role of the "homeostatic mechanism" that regulates body weight.
A. Controlled by the spleen and pancreas, the homeostatic mechanism creates a balance between cardiac and pulmonary outputs
B. Regulated by the arcuate nucleus in the hypothalamus, the body's balance is dependent on a long term and short term signaling that work together to inform the brain about enery stores and changes in nutrient flow
C. There is a short term signaling mechanism involving insulin and leptin, and and a long term mechanism involving ghrelin, peptide YY, cholecystokinin, and glucagon-like peptide that work together to maintain body fat reserves relatively constant
D. B & C