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 a sperm and an egg fuse to form a diploid zygote., Fact2: Familiar types of gamete include the female ovum , or egg cell, and the male sperm cell., Question: When gametes fuse, the resultant zygote is: (A) fertile (B) diploid (C) Flowers (D) grow (E) infected (F) It expands (G) pollen (H) seeds
Output:
B