You are answering a USMLE-style medical question. Question: An 8-year-old boy who recently immigrated to the United States presents with a rash. Past medical history is significant for a recent sore throat which caused him to miss several days at school. The patient’s vaccination status is unknown. On physical examination, the patient is pale and ill-looking. There are pink rings present on the torso and inner surfaces of the limbs. Cardiac exam is significant for a holosystolic murmur heard best over the apex of the heart. Which of the following histopathologic findings is most likely associated with this patient’s condition? Options: A) Atypical lymphocytes on peripheral blood smear B) Starry sky appearance C) Needle-shaped, negatively birefringent crystal deposits D) Granulomas with giant cells Reply with ONLY the letter of the correct answer (A, B, C, or D). No explanation.