Which sentence contains an error in the use of end marks or commas?

A.
Yes, we will be coming to the bridal shower on Sunday.

B.
The invitation says to call by Friday, July 6, to let them know if we're coming.

C.
His new address is 452 East Norwich Ave. Fairfield; Connecticut 06825.

D.
Mrs. Kepler dropped off the brochures this morning.