Q: 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: Fish have a centralized nervous system with a brain., Fact2: Fish include bass and salmon., Question: what has a centralized nervous system with a brain? (A) Birds (B) bacteria (C) pan (D) nerves (E) sharks (F) otters (G) bass (H) viruses
A:
G