Instructions: 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").
Input: Fact1: pollutants have a negative impact on the environment, Fact2: Benzene, like ozone and particulate matter, is a nonthreshold pollutant., Question: What has a negative impact on the environment? (A) massive damage (B) deforestation (C) Hemp (D) harmful substances (E) Particulate matter (F) Bamboo (G) enormous damage to homes (H) Biocompostables
Output:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
E