A Collective Agreement Provides That If an Employee Has Alcohol

A collective agreement provides that if an employee has alcohol in their possession on company property they will be discharged. If an employee is discharged for violating this provision which of the following is correct:

A) An arbitrator could order that the discipline be reduced to a suspension.
B) An arbitrator could order that the employee be reinstated if it is established that the employee had alcohol but did not actually drink on company property.
C) An arbitrator will not uphold the discharge because this violates the human rights of the employee.
D) If it is proven that the employee did have alcohol in their possession on company property the arbitrator cannot reduce the discipline.
E) Progressive discipline would not allow the employer to discharge the employee if it was their first offence.