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: disease has a negative impact on an organism, Fact2: Influenza, or the flu, is a contagious disease caused by a virus., Question: What has a negative impact on an organism? (A) leukemia (B) vitamins (C) minerals (D) the flu (E) smallpox (F) cancer (G) water (H) viruses
Student:
D