Consider this claim: Wearing shoes inside a house is unsanitary and should be avoided. Which is the...

Consider this claim:
Wearing shoes inside a house is unsanitary and should be avoided.
Which is the strongest evidence to support the claim?
Researchers have found that shoes have millions of potentially harmful bacteria on them, as well as allergens.
Affordable shoe racks offer a convenient way to organize shoes in the entryway of homes.
A national survey found that sixty-three percent of Americans opt not to wear their shoes inside their homes.