Detailed 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").
Problem:Fact1: Mollusks reproduce sexually., Fact2: Some mollusks have a shell., Question: What types of animals reproduce sexually? (A) virus (B) produce offspring (C) larvae (D) Some animals with shells (E) mate with females (F) By wind and rain (G) spread flower seeds (H) acellular
Solution:
D