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