Answer:
Employers locked workers in or out of the workplace ( B )
Step-by-step explanation:
lock out by Employer: this is a situation whereby employers of labor/ management of a company stops its workers from coming to work during a labor dispute between the workers or unions against the company. it is like an opposite of strike action because it is carried out by the management of the company and not the workers.
lock in : this is when the management of a company locks in protesting workers in the company premises to stop them from protesting. this is another strategy used by employers against their workers.