Answer:
The correct answer to the following question will be a "Complaint".
Explanation:
In legal terms, a lawsuit is any formal written document setting out all the facts and financial reasons which the filing parties believe are large enough to support a claim against all the parties about whom the complaint is instituted and affords the claimant to something like a remedy.
The point which is considered as a complaint, such as:
Therefore, a Complaint is the right answer.