Please answer the following question: You are presented with the question "What can help decrease emissions?" and the following answer choices: - power - exercise - Carpooling - Flying on airplanes - Having children - Eating red meat - green manures - electricity Now knowing that carpooling decreases the amount of cars used to travel to a place and cars and gasoline-burning engines are large sources of emissions, choose the best answer.
A:
Carpooling