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").

[EX Q]: Fact1: Loss of ozone has created an ozone hole over Antarctica., Fact2: Antarctica's ozone layer is threatened by depletion., Question: What can loss of ozone lead to? (A) irritants (B) bad weather (C) Car accidents (D) ozone hole (E) rain (F) A hurricane (G) stormy weather (H) destroyed crops
[EX A]: D

[EX Q]: Fact1: rain causes erosion, Fact2: Erosion of dunes leads to erosion of the beach and of the Island., Question: What can destroy dunes? (A) wind (B) fire (C) turtles (D) storms (E) clams (F) heat (G) rain (H) grain
[EX A]: G

[EX Q]: Fact1: Kidney failure may be treated with dialysis., Fact2: Renal failure means kidney failure., Question: What may renal failure be treated with? (A) Laboratory (B) Lymphocytes (C) saves lives (D) dialysis (E) Lymph fluid (F) dandelions (G) ibuprofen (H) Protein
[EX A]:
D