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: Blood is a fluid connective tissue., Fact2: Blood carries oxygen to the brain., Question: What transports oxygen to the brain? (A) microscopic organisms (B) some prokaryotes (C) feedback mechanisms (D) chemical messengers (E) animals with backbone (F) aquatic organisms (G) a fluid connective tissue (H) prokaryotic cells
Output:
G