Detailed Instructions: 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").
Problem:Fact1: Blood type is important for medical reasons., Fact2: Transplants are medical miracles., Question: An important factor for transplants is (A) eye color (B) safe operation (C) blood type (D) protection (E) saves lives (F) melanin content (G) skin color (H) bone structure
Solution:
C