Teacher: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").
Teacher: Now, understand the problem? Solve this instance: Fact1: Mammals have a layer of fat under the skin to help insulate the body., Fact2: Insulation is very important in a cold climate like Arkhangelsk., Question: What aspect of mammals is especially important in cold climates? (A) layer of body fat under skin (B) lips (C) sweat glands (D) To conserve energy (E) toes (F) food and shelter (G) It helps them survive (H) by keeping them warm
Student:
A