Given the question: You are presented with the question "What may be caused by an infection or injury of the organs used to breathe air?" and the following answer choices: - Toxicity - smoking - fertilization - pneumonia - a broken leg - oxygenation - Dehydration - the skin Now knowing that pneumonia may be caused by an infection or injury of the lungs and mammals breathe air with lungs, choose the best answer.
The answer is:
pneumonia