<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A 2-month-old girl with a previous diagnosis of DiGeorge syndrome is brought to the emergency department with her parents following a seizure. Her mother states that the baby had been inconsolable all day and refused to feed. She was born at 39 weeks gestation via spontaneous vaginal delivery. She is up to date on all vaccines. Upon arrival to the hospital her heart rate is 120min, respiratory rate is 40min, and temperature of 37.0C 98.6F. On examination, she is afebrile and somnolent and her fontanelles are open and soft. While attempting to take her blood pressure, the patients arm and hand flex sharply and do not relax until the cuff is released. A light tap on the cheek results in an atypical facial muscle twitch. A CMP and CBC are drawn and sent for analysis. Which of the following is the most likely cause?? A: Hypernatremia, B: Hypocalcemia, C: Meningitis, D: High fever, E: Tetanus,  <response>: This is a clinical case about a 2-month-old girl with DiGeorge syndrome who presents with a seizure. The key findings are DiGeorge syndrome, seizure, tachypnea, and muscle spasms suggestive of tetany. The question asks about the most likely cause of her presentation. Based on the history of DiGeorge syndrome, which is associated with hypocalcemia due to hypoparathyroidism, and the physical exam findings of tetany, the most likely cause is hypocalcemia.Hypernatremia, meningitis and high fever are not supported by the history or physical exam. Tetanus is unlikely in a vaccinated infant. Therefore, the most likely answer is hypocalcemia.B: Hypocalcemia 