You are answering a USMLE-style medical question. Question: A 60-year-old female patient with a history of hypertension presents to an outpatient office for regular check-up and is found to have hypertriglyceridemia. Her physician prescribes high-dose niacin and recommends taking the medication along with aspirin. The side effect the physician is trying to avoid is thought to be mediated by what mechanism? Options: A) Bile deposition in the dermis B) Release of prostaglandins C) Mast cell degranulation D) T cell activation Reply with ONLY the letter of the correct answer (A, B, C, or D). No explanation.