Which situation illustrate that the sum of opposite numbers is zero? A)Ian wins 18 chips on a game board and loses 18 chips on his next turn.

B) Jenna earns $15 and spends $15 on makeup.

C) Anna performs 5 consecutive forward rolls and repeats the same routine again.

D) Chris loans his sister $25 Tuesday and $25 again Wednesday.

E) Carol walks down 6 steps to reach the laundry room and up 6 steps to return to the kitchen.​