There are 60 dogs at a doggie daycare one Friday. If 1/3 of the dogs are large dogs, 1/6 of the dogs are medium-sized dogs, which statement is true and the remaining dogs are small dogs, which statement is true?

A. There are 10 less large dogs than small dogs at the daycare.

B. There are 10 more large dogs than small dogs at the daycare

C. There are 20 less dogs than small dogs at the daycare.

D. There are 20 more large dogs than small dogs at the daycare .