You will be given a definition of a task first, then some input of the task.
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").

Fact1: a mold spore has a negative impact on the respiratory system, Fact2: Sinusitis Sinuses are a part of the upper respiratory system., Question: What has a negative impact on the sinuses? (A) A virus (B) viruses (C) an object (D) carbon dioxide (E) air (F) mold spores (G) disease (H) oxygen
Output:
F