You are answering a USMLE-style medical question. Question: A healthy, full-term 1-day-old female is being evaluated after birth and is noted to have a cleft palate and a systolic ejection murmur at the second left intercostal space. A chest radiograph is obtained which reveals a boot-shaped heart and absence of a thymus. An echocardiogram is done which shows pulmonary stenosis with a hypertrophic right ventricular wall, ventricular septal defect, and overriding of the aorta. Which of the following additional features is expected to be seen in this patient? Options: A) Seizures due to hypocalcemia B) Catlike cry C) Hyperthyroidism from transplacental antibodies D) Increased phenylalanine in the blood Reply with ONLY the letter of the correct answer (A, B, C, or D). No explanation.