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").
Input: Fact1: Fertilization occurs when sperm swim to an egg inside an archegonium., Fact2: Water is needed to transport flagellated sperm to archegonium., Question: what requires water? (A) Power plants (B) peachleaf willow (C) animal transport (D) engines (E) Most plants (F) mouth of rivers (G) an organism's body (H) fertilization
Output:
H