The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Which of the following patient presentations seen in a pediatric immunology clinic is most consistent with a diagnosis of Bruton's agammaglobulinemia?   (A) A 15-month-old girl who has had repeated otitis media, pneumonia, and progressive clumsiness since beginning to walk in the past three months   (B) A 10-month-old boy who has had recurrent viral infections as well as hypocalcemia during neonatal period   (C) A 4-year-old girl who has had repeated oral candidasis in the past nine months   (D) A 9-month-old boy who has had recurrent otitis media and pneumococcal pneumonia in the past three months
['(D) A 9-month-old boy who has had recurrent otitis media and pneumococcal pneumonia in the past three months <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) A 15-month-old girl who has had repeated otitis media, pneumonia, and progressive clumsiness since beginning to walk in the past three months \n (B) A 10-month-old boy who has had recurrent viral infections as well as hypocalcemia during neonatal period \n (C) A 4-year-old girl who has had repeated oral candidasis in the past nine months \n (D) A 9-month-old boy who has had recurrent otitis media and pneumococcal pneumonia in the past three months <> possible answers', "  Which of the following patient presentations seen in a pediatric immunology clinic is most consistent with a diagnosis of Bruton's agammaglobulinemia? <> context@"]