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: Collar cells have tiny hairs that trap the particles., Fact2: Collar cells are the work horses of the sponge., Question: what has tiny hairs that trap particles? (A) sponges (B) molecules (C) oaks (D) lizards (E) protozoa (F) snakes (G) cilia (H) clouds
Output:
A