Final answer:
An agreement must meet certain criteria to qualify as a conspiracy, including mutual understanding and intention to commit an illegal act, and a plan or arrangement to carry out that act.
Step-by-step explanation:
In order for an agreement to qualify as a conspiracy, it must meet certain criteria. Conspiracy refers to an agreement between two or more individuals to commit an illegal act. The agreement can be either explicit or implicit, as long as there is a mutual understanding and intention to commit the illegal act. Furthermore, the agreement must involve a plan or arrangement to carry out the act. It can be in the form of a verbal or written agreement, or even an understanding between the parties involved.