In the Steel Manufacturing industry, some establishments are closed shops. This means _____.
Select the best answer choice.
A).workers may or may not belon to a union to work there
B).workers must belong to a union in order to work there
C).the doors to the establishment stay closed all day
D).it is difficult to be fired
Select the best answer choice.
A).workers may or may not belon to a union to work there
B).workers must belong to a union in order to work there
C).the doors to the establishment stay closed all day
D).it is difficult to be fired