In a declaratory action, the court is requested to determine the existence or nonexistence of a right or a legal relationship, or whether a document is forged or not. 

An action in which the court is requested to sentence the defendant to give or perform, or avoid from doing something is an action for performance. 

An action in which the court is requested to create a new legal status, or modify the substance of an existing legal status or terminate it is a constructive action.

An action through which the plaintiff asserts multiple demands against the defendant in the same complaint is an action with gradual demands.

An action through which the court examines the existence of procedural requirements during all stages of the action ex officio is related with procedural requirements.

The correct answer is B.