Workers at Jones Corporation Have Been on Strike for Three

Workers at Jones Corporation have been on strike for three months due to an impasse based on salary and benefits. When the strike is concluded:

A) the workers must all be rehired but they are not entitled to back pay.
B) the workers must be rehired and they are entitled to back pay.
C) the employer is not required to rehire the employees as long as back pay is paid as severance.
D) the employer is not required to rehire the employees and no back pay is required to be paid.