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").
Q: Fact1: a polar bear requires a cold environment, Fact2: Arctic air masses are exceedingly cold, with the Arctic Ocean as their source region., Question: Where can polar bears live? (A) in unnatural habitats (B) aquatic (C) in volcanoes (D) log cabins (E) in deserts (F) the Arctic (G) Being over land (H) the environment
A:
F