Answer:
A. Motion to dismiss
Explanation:
A motion is a way of asking some decision from the court. For an order or other event, the group must "pass" the court. Practice of motion is a significant part of the proceedings.
A party may seek to dismiss the case for a variety of reasons, including failure of jurisdiction in the subject matter, lack of personal jurisdiction, inadequate location, insufficient proceedings, failure to state a claim for which relief may be granted, and failure to join the party concerned.
In this case it is for failure to state a claim upon which relief can be granted (or demurrer).