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: Adult sponges produce eggs and sperm., Fact2: Most sponges are hermaphroditic, meaning that a single organism has both eggs and sperm., Question: What is a single organism that produces both seed and eggs? (A) plants (B) barnacles (C) whales (D) sponges (E) bears (F) birds (G) ferns (H) Conifers
Output:
D