Which of the Following Is an Unfair Labor Practice by Unions

Multiple Choice

Which of the following is an unfair labor practice by unions under the Taft-Hartley Act?

A) Insisting on provisions that the employer may hire only workers who are union members
B) Nominating candidates to union office and conducting secret-ballot elections
C) Going out on strike to secure better working conditions
D) Refraining from activity on behalf of the union
E) Joining a union not recognized by the employer