For a card trick, Barry is using 14 cards from a deck. If each suit he uses has 5 numbered cards and c face cards, which expression shows how many suits he is using?

A. 14 ÷ (5 + c)
B. 14 x 5 + c
C. 14 ÷ 5 + c
D. 14 x (5 + c)​