Write the next sentence in the following story.

How to get rid of dust mites
Dust with a damp cloth.
Dust mites feed on dead skin, dander, and other things that are found in dust. Therefore, where there's dust, there are likely dust mites.

a). A key to eliminating dust mites is getting rid of their food source, and that means dusting with a damp cloth. Rinse the cloth regularly to avoid spreading dust.
b). Use damp cloths for areas with small insects such as lice and dust mites. Place your cloth on a newspaper or another surface that is damp and lint free.
c). Look up dander strips on the internet to find hidden mites. The same goes for deodorants and perfumes that advertise dust mites.
d). Use a damp cloth dipped in water and gentle soap to wipe your body clean. Scrubbing with a damp cloth will also remove the mite and prevent further damage.. The answer should be
a).