question: Q:A 30-year-old woman was found lying down and unresponsive by her parents 2 hours ago. She has no significant medical history. Two years ago, the woman discovered that her husband of 8 years was having an extramarital affair; this revelation subsequently resulted in a drawn-out divorce. After the separation, she moved back in with her parents, who note that she stays in her room, sleeps a lot, and rarely eats. A physical exam shows obtundation. Her temperature is 37.1ºC (98.7ºF), pulse is 110/min, respirations are 24/min, and blood pressure is 126/78 mm Hg. The patient’s admission labs are as follows:
  TSH  3.2 µU/mL
  Morning cortisol  8 µg/dL
  Prolactin 15 ng/mL
  FSH 7 mIU/mL
  LH 6 mIU/mL
  Glucose 22 mg/dL
  C-peptide not detected
  Beta-hydroxybutyrate  ≤ 2.7 mmol/L
  Which of the following is most true of the cell type that is likely involved in the production of the molecule causing this patient’s symptoms?? 
  {'A': 'Contains M3 receptors that stimulate Gq in response to parasympathetic innervation', 'B': 'Gram-negative enteric bacillus; catalase-positive, oxidase-negative, turns pink on MacConkey agar', 'C': 'Located in the periphery of islets of Langerhans', 'D': 'Located in zona fasciculata of the adrenal cortex', 'E': 'Gram-negative enteric bacillus; urease-positive, oxidase-positive, can be identified by silver stain'},