Question

which of the following medications improves the ability to cough up mucus?
a expectorant
b bronchodilator
c antitussive
d antihistamine

Explanation:

Expectorants work by thinning mucus, making it easier to cough up. Bronchodilators relax airway muscles to widen airways. Antitussives suppress cough. Antihistamines block histamine effects, mainly used for allergies.

Answer:

A. expectorant