Answer: d.) pursue a grievance over the interpretation of the labor contract.
Step-by-step explanation:
The labor contract is a contact that states the working conditions and benefits that an employee is expected to get while working for a particular company and it should be noted that this contract is enforceable by law.
Normally, employees shouldn't come to their workplace on holidays. Therefore, based on the scenario in the question, the steward will encourage Amara to pursue a grievance over the interpretation of the labor contract.