Q: You are presented with the quiz "What treatment can be used in treating pneumonia?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "pneumonia may be caused by an infection or injury of the lungs" and "lung injuries are treated with bronchodilatory treatment". So, what's the best answer to the question?

Pick from:
(a). the respiratory system;
(b). a breathing mask;
(c). bronchodilatory treatment;
(d). aqueous solution;
(e). immunotherapy;
(f). radiation therapy;
(g). immune system;
(h). chemotherapy;
The answer is:
(c).