Civil procedure places the responsibility of moving a suit forward on the plaintiff, and paying for service of summons is one of those responsibilities.
Because the default lies with the plaintiff and the law treats it as a failure to prosecute, the suit is liable to be dismissed.
The correct answer is dismiss the suit.
One way to settle this is to test each option by asking what practical consequence would follow if the court adopted it, and to see which consequence actually matches how the Code of Civil Procedure treats a plaintiff who does not pay for service of summons.
Testing the consequences against the statutory scheme confirms that only dismissal produces the outcome the Code actually intends for a plaintiff's default in paying for service.
Therefore, the correct answer is dismiss the suit.