<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A 2-day-old boy is evaluated in the newborn nursery after the nurse witnessed the child convulsing. The child was born at 39 weeks gestation to a healthy 32-year-old G1P0 woman. Initial examination after birth was notable for a cleft palate. The childs temperature is 99F 37.2C, blood pressure is 10060 mmHg, pulse is 115min, and respirations are 18min. On exam, he appears somnolent. His face demonstrates periorbital fullness, hypoplastic nares, and small dysmorphic ears. A series of labs are drawn and shown below:Hemoglobin: 13.1 gdLHematocrit: 40Leukocyte count: 4,000mm3 with normal differentialPlatelet count: 200,000mm3Serum:Na: 140 mEqLCl-: 100 mEqLK: 3.8 mEqLHCO3-: 25 mEqLBUN: 19 mgdLGlucose: 110 mgdLCreatinine: 1.0 mgdLCa2: 7.9 mgdLPhosphate: 4.7 mgdLThis patient is deficient in a hormone that has which of the following functions?? A: Activates 1-alpha-hydroxylase, B: Activates 24-alpha-hydroxylase, C: Activates 25-alpha-hydroxylase, D: Inhibits 1-alpha-hydroxylase, E: Inhibits 25-alpha-hydroxylase,  <response>: Based on the clinical vignette, this infant has signs and symptoms consistent with DiGeorge syndrome, including cleft palate, facial dysmorphism, hypocalcemia, and lymphopenia. DiGeorge syndrome is caused by a deletion in chromosome 22q11.2, which results in abnormal development of the third and fourth pharyngeal pouches. This leads to hypoplasia or aplasia of the parathyroid glands and subsequent hypocalcemia due to lack of parathyroid hormone PTH. PTH has several important functions related to calcium homeostasis. It activates 1-alpha-hydroxylase in the kidney, which converts 25-hydroxyvitamin D to the active form 1,25-dihydroxyvitamin D. 1,25-dihydroxyvitamin D increases intestinal absorption of calcium. PTH also mobilizes calcium from bone by stimulating osteoclast activity. Therefore, the correct answer is the hormone that activates 1-alpha-hydroxylase.A: Activates 1-alpha-hydroxylase 