Which Statement About Employment Contracts in Union and Nonunion Organizations

Which statement about employment contracts in union and nonunion organizations is not correct?

A) All employer-employee relations include employment contracts.
B) Nonunion employment contracts are negotiated on an individual basis; they are usually implicit, informal, and not written.
C) Union employment contracts are developed through collective bargaining and affect all union members.
D) Union employment contracts are usually explicit, formal, and written legal contracts.
E) All of these statements are correct.