You are answering a USMLE-style medical question. Question: A 3-year-old boy is brought to the physician for the evaluation of recurrent skin lesions. The episodes of lesions started at the age of 2 months and multiple treatment options have been attempted without success. He has also had several episodes of respiratory tract infections, enlarged lymph nodes, and recurrent fevers since birth. The boy attends daycare. His older brother has asthma. The patient's immunizations are up-to-date. He is at the 5th percentile for length and 10th percentile for weight. He appears ill. His temperature is 38°C (100.4°F), pulse is 100/min, and blood pressure is 100/60 mm Hg. Examination shows several raised, erythematous lesions of different sizes over the face, neck, groins, and extremities; some secrete pus. Cervical and axillary lymph nodes are enlarged bilaterally. The remainder of the examination shows no abnormalities. Which of the following is the most likely diagnosis? Options: A) Chronic granulomatous disease B) Atopic dermatitis C) Wiskott-Aldrich syndrome D) Chediak-Higashi syndrome Reply with ONLY the letter of the correct answer (A, B, C, or D). No explanation.