How to prevent worms in dogs<br>Clean your dog's living area on a regular basis to remove feces and other waste materials. Dogs may become infected with worms from old feces that remains in your backyard. Use a poop scooper to clean up your dog's feces every day.

Based on that paragraph can we conclude that this sentence is true?
the cats feces has to be washed

Select from the following.
(A). Yes;
(B). It's impossible to say;
(C). No;