Definition: 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: Most invertebrates have a nervous system., Fact2: Invertebrates Among the invertebrates, the largest number of species are insects., Question: what do insects have? (A) four limbs (B) liver (C) sensory neurons (D) epidermis and dermis (E) lizards (F) spiders (G) important habitats (H) nervous system
Output:
H