Which of these is a cause of labor strikes

Causes of Strike

Dispute relating to minimum wages.

Salary and incentive issues.

Increment is not up to the performance.

Dissatisfaction with the policies of the company.

Hours of work and interval timings.

Holidays and leaves with pay.

Bonus, Provident Fund, and gratuity.

Withdrawal of any facility or allowance.

Maybe like not getting paid enough. Or doing a hard job and not getting paid a lot.