If you are invited to a business dinner, at the end of the meal, what do you do with the napkin?

A、Looselyfolditandleaveitonthechair.
B、Looselyfolditandplaceitontheleftsideofyourplate.
C、Wellfolditandplaceitontheleftsideofyourplate.
D、Wellfolditandplaceitontherightsideofyourplate.