Which of the Following Statements About Why Unionization and Collective

Which of the following statements about why unionization and collective bargaining are important is true?

A) Employers typically do not change their methods of operation when union organizers appear.
B) The core of union-management relations is the grievance procedure.
C) Unionization typically gives employers more flexibility in hiring new workers.
D) Unions obtain rights for their members that employees without unions do not legally have.
E) All of the above statements about why unionization and collective bargaining are important are truE.