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").
Q: Fact1: Tunicates reproduce sexually., Fact2: Tunicates are sea creatures encased by tough membranes, reminiscent of tunics., Question: Sea creatures encased by what reproduce sexually? (A) barnacles (B) refraction of light (C) layers of fat (D) Epidermis (E) tough membranes (F) ocean water (G) gastropod shells (H) epidermis and dermis
A:
E