The method for providing solutions to union$-$management conflicts over interpretation or violation of a collective bargaining agreement is known as a

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corporate campaign.

grievance procedure.

complaint protocol.

protest procedure.

The National Labor Relations Board certifies a union as the exclusive representative of a group of employees when

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a union pays its dues to the board.

the management of an organization approves of a union.

the American Federation of Labor and Congress of Industrial Organizations votes in favor of a union.

at least $51$ percent of the employees join the union within a certain time $(30$ days$)$ after beginning employment.

a majority of workers vote in favor of a union.