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

Multiple Choice

Katrina, the union head; expels members for crossing a picket line that is unlawful.

Jelle, a manager, threatens to close down a plant if organized by a union.

Wayne, a manager, prohibits mass picketing when nonstriking employees are physically barred from entering the plant.

Gerardo, a union member, causes the discharge of an employee, Noah, who spoke out against a contract proposed by the union.

Ila, an employee representative, tricks her employer by including illegal provisions in a contract.