[Answered]: A 23-month-old boy is brought to the pediatric…

A 23-month-old boy is brought to the pediatric clinic for evaluation of recurrent infections, feeding difficulties, and poor weight gain. On physical examination, the infant has low-set ears, a small jaw, and a cleft in the soft palate. Laboratory findings show significant hypocalcemia, reduced T-cell counts, and normal levels of B cells. Imaging demonstrates aplasia of the thymus. What is the most likely diagnosis for this patient? Answers A – E A SCID B LAD c XLA D Selective