Teacher: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").
Teacher: Now, understand the problem? Solve this instance: Fact1: carpooling decreases the amount of cars used to travel to a place, Fact2: Ozone from cars creates smog., Question: How can smog be reduced? (A) Burning fuel (B) Flying airplanes (C) air cools (D) evaporation (E) exercise (F) vaporization (G) Driving more cars (H) Carpooling
Student:
H