Welcome to Westonci.ca, your one-stop destination for finding answers to all your questions. Join our expert community now! Our platform connects you with professionals ready to provide precise answers to all your questions in various areas of expertise. Explore comprehensive solutions to your questions from a wide range of professionals on our user-friendly platform.

What is the primary function of mucus in the human body?
A. To transport oxygen in the bloodstream
B. To aid in digestion
C. To lubricate and protect surfaces such as the respiratory tract
D. To regulate body temperature