PLZ HURRY IT'S URGENT!!!!!!
Which sentence uses punctuation correctly?

A. The dairy farmer, who rises at 5 o'clock in the morning, milks the cows.

B. The dairy farmer who rises at 5 o'clock, in the morning, milks the cows.

C. The dairy farmer, who rises at 5 o'clock in the morning milks the cows.

D. The dairy farmer who rises at 5 o'clock in the morning, milks the cows.