Which situation describes opposite quantities that when combined would equal 0?

A. Eileen moves seven spaces forward, then she moves seven spaces back in a game.

B. Eileen moves seven spaces forward, then she moves two spaces back in a game.

C. Sarah deposits $20 in an account and then deposits another $20.

D. Sarah is charged a fee of $20 and withdraws $20.

A. Eileen moves seven spaces forward, then she moves seven spaces back in a game.

The situation that describes opposite quantities that when combined would equal 0 is option A. Eileen moves seven spaces forward, then she moves seven spaces back in a game.