You are answering a USMLE-style medical question. Question: A 13-month-old boy is brought to the physician for a well-child examination. Physical examination shows hepatosplenomegaly. A venous blood sample obtained for routine screening tests is milky. After refrigeration, a creamy supernatant layer appears on top of the sample. Genetic analysis shows a mutation in the apolipoprotein C-II gene (APOC2) on chromosome 19. This patient is at greatest risk for developing which of the following complications? Options: A) Acute pancreatitis B) Myocardial infarction C) Corneal arci D) Cerebrovascular accident Reply with ONLY the letter of the correct answer (A, B, C, or D). No explanation.