At work, Zaida made 48 phone calls in 6 hours. She made the same number of phone calls each hour. How many phone calls did she make each hour?

A

54, because 48 + 6 = 54

B

288, because 48 × 6 = 288

C

42, because 48 − 6 = 42

D

8, because 48 ÷ 6 = 8