Definition: 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").
Input: Fact1: Endocrine hormones travel throughout the body in the blood., Fact2: Endocrine glands secrete directly into the blood., Question: what do glands secrete? (A) Energy. (B) thiamine (C) vitamins (D) allow growth (E) Energy (F) hormones (G) Bodily water (H) brain
Output:
F