Which of the Following Is Correct Regarding a Grievance Relating

Which of the following is correct regarding a grievance relating to the job posting and selection process:

A) The employer can rely upon the management rights article to establish any job specifications.
B) The selection decision must be based on the job specifications set out in the job posting.
C) An arbitrator will review the job specifications; however, an arbitrator will not review the employer's decision regarding which employee meets the specifications.
D) If it is determined that the job posting process was flawed, arbitrators always order the process to be repeated.
E) The employer bears the burden of proof.