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: Sperm had to swim from male to female reproductive organs for fertilization., Fact2: If fertilized, the egg implants itself in the uterus., Question: Sperm had to swim from male to female reproductive organs to be what? (A) produce offspring (B) ejaculated during reproduction (C) implanted and swabbed (D) allow growth (E) mate with females (F) implanted in the uterus (G) implanted in the cheek (H) more abundant
Output:
F