Which tool can workers use during a labor dispute?

The correct answer would be Strikes and Lockouts.

Explanation:

Strikes and Lockouts are used by the workers as tools during a labor dispute.

Whenever there is a dispute between the workers of an organizations and the management, labor workers usually go on strike or lockouts to make the management accepts their demands. When workers go on strikes or lockouts, the work is closed and the management may bear financial losses, and this strategy puts a lot of pressure over the management. So this is used as an experienced tool to be used by the workers.