Which of the Following Is an Unfair Labor Practice by the Employer

Multiple Choice

Which of the following is an unfair labor practice by the employer?

A) Fining or expelling members for crossing a picket line that is unlawful.
B) Threatening to close down a plant if organized by a union.
C) Mass picketing in such numbers that nonstriking employees are physically barred from entering the plant.
D) Acts of force or violence on the picket line or in connection with a strike.
E) Threats to employees of bodily injury or that they will lose their jobs unless they support the union's activities.