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: planting trees has a positive impact on an ecosystem, Fact2: An ecosystem contains many habitats., Question: doing what with trees has a positive impact on habitats (A) making tables (B) chopping down (C) planting (D) watershed (E) earth (F) bloom time (G) growth (H) timbering
[A]: C

[Q]: Fact1: if an object is kicked then force is exerted on that object, Fact2: Force is measured in newtons., Question: what is exerted on a kicked object? (A) adding heat (B) soccer ball (C) shorts (D) wooden plank (E) kinetic energy (F) Electrical energy (G) direct damage to the lungs (H) measurement of newtons
[A]: H

[Q]: Fact1: a solar panel converts sunlight into electricity, Fact2: Electricity Cars that operate using electricity are the cleanest cars on the market., Question: Some cars can now be powered by (A) wind (B) Solar energy (C) fusion power plants (D) brain waves (E) gravitational waves (F) engines (G) sunlight (H) energy
[A]:
G