What must a summons under Rule 4(b) contain?

The correct answer encompasses essential elements required for a valid summons under Rule 4(b). A summons must contain the name of the court to establish the jurisdiction under which the case is being heard. Additionally, it needs to clearly identify the parties involved in the legal action, ensuring that there is no ambiguity about who is being summoned. Moreover, other specified information may include the case number, the date and time the defendant is required to respond, and notice about the consequences of failing to respond.

This comprehensive set of information is crucial to ensure that the defendant fully understands the nature of the action against them, the court in which it is filed, and their rights and obligations in relation to the legal process. The absence of any of these components could render the summons ineffective, which in turn could adversely affect the legal proceedings.