I believe it is A
Explaination-
No matter how well we clean, our homes are full of bacteria, germs, dirt, and all kinds of invisible particles. If there were an easy way to quantify just how many there are, even the most blasé among us would make a swift shift to full-on germaphobe mode. The germiest places in your kitchen, for instance, are objects and spots you should really clean regularly to stop harmful bacteria from flourishing. But how often do you wash out the vegetable drawer in your kitchen or sanitize the water dispenser? When was the last time you washed the knobs on your stove or washed out your knife block? A month ago? A year ago? Never? Oops. If you’re grossed out by all of the germs and bacteria that might be lurking in your kitchen, you should know there are plenty of other places for such organisms to hide in your home. And, like those random nooks and crannies in your kitchen, you probably aren’t regularly cleaning these germ hot spots.