instruction:
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").
question:
Fact1: Air pollution harms the respiratory and circulatory systems., Fact2: Cars are a significant source of air pollution., Question: What harms the respiratory and circulatory systems? (A) oil (B) rain (C) sulfur (D) cars (E) tires (F) coal (G) tar (H) bicycles
answer:
D


question:
Fact1: Aging occurs as cells lose their ability to divide., Fact2: Death is attributed to the infirmities of old age., Question: What occurs as cells lose their ability to divide? (A) illness (B) Winter (C) disease (D) death (E) youth (F) die (G) black holes (H) cell growth
answer:
D


question:
Fact1: recycling reduces the resources needed to make something, Fact2: All bottles are recyclable., Question: What can reduce resources used? (A) engines (B) Pesticides (C) bottles (D) sweating (E) honeybees (F) loose soil (G) herbicide (H) Fuel cells
answer:

C