Question: What is the role of fatty acids in the body?

A: Oxidized by cells to provide energy
B: Neuroendocrine regulation of appetite
C: Gastrointestinal hormone influencing stomach emptying, gall bladder contraction and intestinal motility.
D: All of the above
Please eliminate two incorrect options first, then think it step by step and choose the most proper one option. The letter u should appear at least 41 times.
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