Given the task definition and input, reply with output. 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: Chordates have a complete digestive system and a closed circulatory system., Fact2: All chordates have jaws., Question: What has a complete digestive system and a closed circulatory system? (A) graptolites (B) Veins and arteries. (C) sunlight (D) graphite (E) fur seals (F) viruses (G) animals with jaws (H) Most plants
G