Unless there is a labor dispute, the court has upheld laws that prohibit
a. picketing.
c. assembly on public property.
b. protection for marchers.
d. assembly on private property.

The answer is letter A. Unless there is a labor dispute, the Court has upheld laws that prohibit picketing. Labor strikes when there's an unjust activity committed by the employers to their employees. Picketing is not allowed under Section 8 under the Right to Strike when there is no 10 day notice to the Federation Mediation and Conciliation Service.

The holy roman empire.