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: riding a bike does not cause pollution, Fact2: City employees use bicycles on the job to save energy and reduce air pollution., Question: Riding a bike reduces what? (A) energy usage (B) Greenhouse gasses (C) acid rain (D) harmful substances (E) Greenhouse gases (F) temperature (G) prolactin release (H) storms
Student:
A