Given the task definition and input, reply with output. 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: Pneumonia may be caused by an infection or injury of the lungs., Fact2: If fluid builds up within the lung tissue , it is called pneumonia., Question: what might infection or injury of the lungs cause? (A) decrease stamina (B) death and devastation (C) a lot of human deaths (D) stomach (E) destroying life (F) good health (G) h2o vapor (H) lung tissue fluid build up
H