Q: 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").
Fact1: Loss of ozone has created an ozone hole over Antarctica., Fact2: Ozone is a key atmospheric chemical and protective ultraviolet shield., Question: What does the hole over antarctica reduce? (A) the weight of the air (B) the environment (C) water vapor (D) Ultraviolet shielding (E) air pollution (F) Warm air (G) radiation (H) Warm water
A:
D