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: some animals' fur grows thicker for staying warm in the winter, Fact2: Mammals are animals that are born with fur or hair., Question: What are born with fur that grows thicker for warmth in winter? (A) bullfrogs (B) insects (C) birds (D) monotremes (E) turtles (F) mammals (G) pigeons (H) Echinoids
Solution:
F