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: Pregnancy is the carrying of one or more offspring from fertilization until birth., Fact2: Infertility is also the inability to carry a pregnancy to full term., Question: Carrying offspring to full term is from when? (A) fertilization until birth (B) childhood to adulthood (C) after the snow melts (D) last stage before adulthood (E) Male gametes. (F) sexually maturity (G) embryo to zygote (H) infancy to death
Output:
A