Which context describes a difference of rational numbers

A football player gains yards on a play
A football player loses yards on a play
The team's score increased when scoring
The team's score did not change during the game

A football player gains yards on a play and a football player loses yards on a play

The context that describes a difference of rational numbers is when a football player gains yards on a play and when a football player loses yards on a play. In this situation, the positive gain or negative loss in yards represents the difference between the rational numbers.