What type of court case was described involving a man suing for sexual harassment?

The correct answer indicates that the case is taking place in a federal district court, which is appropriate for a suit involving sexual harassment under federal laws. Sexual harassment claims can arise under various federal statutes, such as Title VII of the Civil Rights Act of 1964, which prohibits employment discrimination on the basis of sex, including sexual harassment. Federal district courts have original jurisdiction over cases that involve federal questions, making them the right forum for such claims when they are based on federal law.

When a man sues for sexual harassment and the claim is based on a federal statute, filing in federal court is often necessary, especially if the claim pertains to workplace discrimination that may span across state lines or involve agencies governed by federal regulations. This context supports why federal district court is the appropriate venue.

Other types of cases listed, like civil cases in state courts or criminal cases in federal courts, do not fit the specific nature of a sexual harassment claim based on federal law. Mediation is not a type of court case, but rather a method of resolving disputes outside of court. Thus, the context of federal laws governing sexual harassment suits leads to the conclusion that a federal district court case is most suitable for this scenario.