Q: In this task, you are given two facts, and a multiple-choice question. Based on the given facts, answer the question with index of the correct option (e.g, "A").
Fact1: TRH stimulates the pituitary gland to produce thyroid-stimulating hormone, or TSH., Fact2: Another function of TSH is to maintain the structural integrity of the thyroid gland., Question: What stimulates the pituitary gland in order to maintain structural integrity of the thyroid? (A) TRH (B) Urea (C) CO 2 (D) PDAs (E) HPV (F) SO2 (G) mL (H) p53
A:
A