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: erosion of soil has a negative impact on the environment, Fact2: Weathering and erosion continue to shape it today., Question: What has a negative impact on the environment? (A) harmful substances (B) weathering of soil (C) saving water (D) planting trees (E) deforestation (F) massive damage (G) recycling (H) enormous damage to homes

Ex Output:
B


Ex Input:
Fact1: if a neutral atom loses an electron then an atom with a negative charge will be formed, Fact2: If an atom loses an electron, it is then positive., Question: what can an atom be? (A) Energy. (B) energy (C) microscopic (D) dangerous (E) small (F) nucleus (G) an object (H) negative

Ex Output:
H


Ex Input:
Fact1: Plants use cellulose for their cell walls., Fact2: Leaf blades contain cellulose and hemi-cellulose that are readily broken down by microbes., Question: plants cell walls are readily broken down by what (A) Heavy rains (B) heat energy (C) acetic acid (D) microbes (E) fossil fuels (F) heat (G) bacteria (H) chemicals

Ex Output:

D