Why is the practice of saying hurtful or untrue things about the the other candidates in an election called “mudslinging”

Which of the following statements is true about germany's use of u-boats?

Will give 20 pointsthe problems experienced by the british colonists were best expressed in which document? a) the preamble b) the federalist papers c) the declaration of independence d) the constitution of the united states of america

The zealots were for a: the teaching of jesus b: temple and sacrifices c: faith and law d: the military overthrow of roman rulers