Under Which of the Following Circumstances Is a Successor Employer

Under which of the following circumstances is a successor employer considered to be guilty of an unfair labor practice?

A) The successor employer sells off a large part of the existing business.
B) The successor employer disregards the predecessor's collective bargaining agreement.
C) The successor employer sets the initial terms of employment, such as wages, benefits, and working conditions, without consulting the union.
D) The successor employer refuses to hire existing employees due to their union status.