Write the next sentence in this paragraph:

How to spot moth damage on a wool area rug
Keep them clean.
Prevention and cleaning are the best defense against getting a moth infestation. Before storing any wool rugs, blankets, clothing, etc get them cleaned.

Pick your answer from: A. This will make sure they stay clean on the ground. If at all possible, get a closet or other container that can be designated to hold them.; B. Shrink good-quality rugs around your home. Removing worn or mismatched rugs will reduce moth damage.; C. Moths cannot survive on clean wool as it does not have the nutrients it needs. If you live in a house, get your air ducts cleaned before using them.; D. Use a mild detergent that is made for cotton, not wool. Place the rug in a soft shoe box.;
C.