Final answer:
Arbitration is the last step in the grievance process for Linda Chu at the Emery Corporation after other methods like mediation have failed, as it involves an independent third party making a binding decision.
Step-by-step explanation:
Linda Chu’s situation at the Emery Corporation after an unsuccessful mediation represents a grievance process typically found in workplaces with formal dispute resolution mechanisms. The last step in this process for addressing a grievance, especially when other steps such as mediation fail, is generally arbitration.
This option, Arbitration (A), is a method where an independent third party reviews the case and makes a decision that is usually binding for both parties. It is considered a preferable alternative to litigation due to its less formal nature and reduced costs. The other options presented, such as Written Warning (B), Suspension (C), and Termination (D), are disciplinary actions that might be related to the grievance subject but do not represent a step in the grievance resolution process itself.