In cystic fibrosis, if the affected cells swell with liquid from the interstitial fluid, what would happen to the mucus on the surface of those cells?

A)It would be too runny or syrupy and be swept away rapidly.
B)It would not be secreted by the cell.
C)It would be thick, sticky, and difficult to move.
D)It would no longer contain lysosymes and other antimicrobial chemicals.