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: Organisms use lipids to store energy., Fact2: Triglycerides are a storage form of energy., Question: In what form do organisms use lipids? (A) Triglycerides (B) glucose (C) layers of fat (D) adding heat (E) reducing acid rain (F) hydrocarbons (G) recycling (H) By wind and rain
[EX A]: A

[EX Q]: Fact1: erosion causes a river to become deeper and wider, Fact2: Weathering and erosion continue to shape it today., Question: Weathering causes what to become deeper and wider? (A) a landslide (B) Sediment (C) a mountain (D) a volcano (E) soils (F) rock (G) flooding (H) a river
[EX A]: H

[EX Q]: Fact1: a meter stick is used to measure distance, Fact2: Each person is placed at a different distance from the object., Question: what is used to measure between a person and an object (A) odometer (B) meter stick (C) radar (D) intelligence (E) Communication (F) speedometer (G) how they move (H) strength
[EX A]:
B