<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A 55-year-old woman has a total thyroidectomy for papillary thyroid carcinoma. She complains of tingling around the mouth 11 hours after the operation. Her condition rapidly deteriorates with difficulty breathing and chest tightness. Which of the following best represent the signaling pathway of the deficient hormone responsible for this patients symptoms?? A: Cyclic guanosine monophosphate cGMP, B: Cyclic adenosine monophosphate cAMP, C: Inositol trisphosphate IP3, D: Receptor tyrosine kinase, E: Intracellular receptors,  <response>: This is a question about the signaling pathway involved in hypocalcemia following total thyroidectomy. The patient has symptoms of tingling and chest tightness 11 hours after surgery, indicating acute hypocalcemia likely due to hypoparathyroidism after removal of the parathyroid glands during thyroidectomy. The deficient hormone is parathyroid hormone PTH. PTH signals through the G protein-coupled PTH receptor, which activates adenylyl cyclase and leads to increased production of cyclic AMP cAMP. cAMP acts as a second messenger to activate protein kinase A and phosphorylate proteins involved in increasing serum calcium levels. Therefore, the answer that best represents the signaling pathway of PTH and hypocalcemia is cyclic AMP cAMP.B: Cyclic adenosine monophosphate cAMP 