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").
Q: Fact1: Sponges are a source of food for many species of fish., Fact2: Sponges live on the bottom of oceans, rivers, and streams., Question: where do many species of fish find food? (A) salt and water. (B) on land (C) important habitats (D) bottom of oceans (E) clouds (F) search (G) the body's largest organ (H) body water
A:
D