In a declaratory relief action, the court may refuse to exercise its power to declare rights and construe instruments in what instance/s?

The question

In a declaratory relief action, the court may refuse to exercise its power to declare rights and construe instruments in what instance/s?

1. A.When a decision would not terminate the controversy which gave rise to the action.
2. B.In an action to consolidate ownership under Art. 1607 of the Civil Code.
3. C.To establish legitimate filiation and determine hereditary rights.
4. D.(a) and (c) above

This question has not been answered yet.