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 Input:
Fact1: Ozone depletion results in higher levels of UV radiation reaching Earth., Fact2: Birds live on Earth, trees live on Earth., Question: what results in higher levels of uv radiation reaching the place birds and trees live? (A) emissions (B) earthquakes (C) oxidation reaction (D) ozone depletion (E) global warming (F) important habitats (G) fairies (H) the ozone layer strengthening

Ex Output:
D


Ex Input:
Fact1: lakes are formed by precipitation and runoff, Fact2: Runoff from precipitation is a natural part of the water cycle., Question: What are some of the steps that forms a lake? (A) decomposition and respiration (B) storing water (C) photosynthesis and solar energy (D) near the shoreline (E) precipitation and run-off (F) perspiration and excretion (G) The area was once underwater (H) At the peak of a mountain

Ex Output:
E


Ex Input:
Fact1: Blood pressure is highest in arteries and lowest in veins., Fact2: Apocymarin raises blood pressure., Question: what affects veins and arteries? (A) Damages them (B) Sulfur dioxide (C) Smoking (D) rays or beams (E) smoking tobacco (F) apocymarin (G) it needs them (H) heat energy

Ex Output:

F