In which situation do the quantities combine to make 0?

A. Dylan borrows $10 from a friend on Friday. He pays his friend back $10 on Saturday

B. A hot air balloon rises 30 feet. Then it travels 30 feet due east.

C. Michael earns $80 mowing lawns. Then he spends a total of $40 for tickets to a ballgame for himself and a friend.

D. Gianna fills a water bottle with 32 fluid ounces of water. Then she drinks half of the 32 fluid ounces of water in the bottle​