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").

Q: Fact1: Heterotrophs are living things that cannot make their own food., Fact2: All animals are heterotrophs., Question: what are living things that cannot make their own food? (A) hydrogen (B) clouds (C) animals (D) humans (E) bacteria (F) bushes (G) fungi (H) plants

A: C
****
Q: 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

A: B
****
Q: Fact1: cold fronts cause thunderstorms as they pass by, Fact2: All thunderstorms produce lightning., Question: Cold fronts cause what? (A) lightning (B) Dehydration (C) erosion (D) mountains (E) sunlight (F) rainfall (G) sunsets (H) flooding

A:
A
****