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").
Problem:Fact1: Most invertebrates have a more complex nervous system., Fact2: All complex living creatures, are organized by a nervous system ., Question: Most invertebrates are what? (A) microorganisms (B) extinct creatures (C) remains of prehistoric life (D) more abundant (E) dying species (F) complex living creatures (G) members of their own species (H) ruined creatures
Solution:
F