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? If you are still confused, see the following example:
Fact1: a plant requires sunlight to grow, Fact2: Plants to avoid are fast-growing vines that can take over an area in no time., Question: What requires sunlight in order to take over an area? (A) spores (B) fish (C) plants (D) humans (E) pods (F) Oak (G) opossums (H) coral
Solution: C
Reason: This is a good example. Based on the facts plants require sunlight in order to take over an area.

Now, solve this instance: Fact1: insulated material can be used for keeping warm, Fact2: Guard hairs protect the fur, while the fur insulates the mammal., Question: What can be used to keep warm? (A) hair (B) fighting bears (C) lightning (D) hemp (E) coat (F) cooked food (G) wood (H) fur
Student:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
H