An employee from State A sues a former company for discrimination in a federal court. What is significant about the subpoena served to an officer of the company?

The significance of the subpoena served to an officer of the company lies in the fact that the officer can be compelled to attend a deposition in the city where the employee resides. This is grounded in the rules governing the location where a deposition can be taken. Generally, under the Federal Rules of Civil Procedure, a party may serve a subpoena on a witness, compelling them to attend a deposition in the district where the action is pending or at a place authorized by the court.

In this case, the federal court has jurisdiction over the matter, and it allows for deponents to be required to attend depositions in locations that may be convenient to the witnesses, including the city where the employee resides. This facilitates the discovery process by maximizing accessibility for the parties involved.

The other choices do not align with the rules governing subpoenas and depositions. The requirement that a subpoena must be served in writing is a standard aspect of legal procedures but does not capture the unique implications of the officer's obligation related to deposition locations. Similarly, the relevance of the city where the employee resides and the limitation of where the officer can be subpoenaed do not apply in this context, as deposition rules allow for flexibility based on the convenience for the parties involved.