You will be given a definition of a task first, then some input of the task.
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").

Fact1: Echinoderms have a unique water vascular system with tube feet., Fact2: Another obvious connection between the eye and the rest of the body is the vascular system., Question: a connection is between the eye and what type of feet in echinoderms (A) tube (B) Seesaw (C) vision (D) made (E) voles (F) a path (G) bones (H) muscle
Output:
A