Final answer:
A confidence game, or con game, is a scheme where the perpetrator gains the trust of the victim in order to deceive or defraud them. An example is a man convincing someone to use their money to place a bet in a rigged establishment.
Step-by-step explanation:
A confidence game, also known as a con game or a scam, is a scheme where the perpetrator gains the trust of the victim in order to deceive or defraud them. An example of a confidence game is option B) A man convinces a mark to use the mark's money to place a bet for him in a rigged betting establishment. In this scenario, the man manipulates and tricks the mark into using their own money for his benefit by exploiting their trust.