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: Mollusks reproduce sexually., Fact2: Clams are mollusks that live in the sea or in freshwater., Question: What reproduces sexually? (A) ferns (B) toads (C) legumes (D) clams (E) fission (F) rocks (G) the Sun (H) bamboo
Output:
D