Now the illegal labor market practice of signing the yellow dog contracts includes requiring: (1) Nonunion workers to pay the union dues as the condition of employment. (2) Job applicants to sign the agreements not to join unions previous to hiring them. (3) Unions to appoint the low level managers of the firm to positions as union officers. (4) Assembly line workers to agree to the output quotas which rose with seniority. (5) Employees to work even if their unions went to out-on-strike.
Can someone please help me in finding out the accurate answer from the above options.