A Union Is Performing a Jurisdictional Strike in Front of a Construction

A union is performing a jurisdictional strike in front of a construction site. What is a jurisdictional strike?

A) It is a strike through which the union seeks to pressurize an employer to assign a particular work to its members; rather than to members of other unions or to the non-union workers.
B) It is a strike through which the union seeks to pressurize an employer to agree to the terms ofa new contract although there is already an approved contract in place.
C) It is a strike through which the union seeks to pressurize an employer to agree to the terms of a new contract because the current contract between the employer and the union has expired.
D) It is a strike through which the union seeks to pressurize an employer to assign all work to its members, rather than to members of non-union workers.