You are answering a USMLE-style medical question. Question: A 3550-g (7.8-lb) male newborn is delivered at term to a 27-year-old, gravida 1, para 1 woman (Rh+). Within the first 24 hours after birth, the newborn develops fever and a yellow discoloration of skin and sclerae. Examination shows loss of flexion in the extremities, splenomegaly, and cyanosis. Laboratory studies show decreased haptoglobin levels and increased LDH levels. A photomicrograph of a peripheral blood smear is shown. Which of the following is most likely involved in the pathogenesis of this patient's condition? Options: A) Decrease in the reduced form of glutathione B) Maternal antibodies against the rhesus D antigen C) Deficiency of ATP D) Osmotically fragile erythrocytes Reply with ONLY the letter of the correct answer (A, B, C, or D). No explanation.