What do you mean by the black market?

Toward the end of the roman empire, what caused a decrease in the use of coined money tell me now

Three thieves agreed to rob a bank. the first was to steal a car to be used for the getaway, the second agreed to procure weapons, and the third would check the bank for cameras. the car thief stole a car and parked it in a lot behind his girlfriend's apartment building. while visiting her the night before the robbery, the car thief suffered a series of convulsive seizures. he was rushed to the hospital where he was placed in the intensive care unit and heavily sedated. meanwhile the two other thieves, unaware of their accomplice's illness, met and decided to rob the bank on their own, despite the absence of a getaway car and driver. they robbed the bank, but were quickly apprehended as they tried to escape and implicated the car thief under police questioning. the car thief can be charged with: a theft of the car only. b conspiracy to commit robbery and theft of the car only. c robbery and theft of the car only. d theft of the car, conspiracy to commit robbery, and robbery.

As bob is driving on an exit off the freeway, he comes to a stop light and sees a homeless man asking people for spare change. “see, he’s a perfect example of why we shouldn’t be giving welfare benefits to the homeless,” bob mutters to his wife. “he’s too lazy to get a job, but he’s healthy enough to beg people for their hard-earned money all day long.” what are the sample and the target in bob’s argument? are there any inductive fallacies present in bob’s reasoning (bias, hastiness, appeal to anecdotal evidence, self-selection)? if so, explain why. if not, explain why not.