When the demand is bigger than the supply, a shortage occurs (option C). - a shortage is when there is not enough of a certain good, such as of toilet paper in Communist Eastern Europe in the 80s.
The answer is <span>Token economy. </span>It is an arrangement of possibility administration in light of the precise fortification of target conduct. The reinforcers are images or "tokens" that can be traded for different reinforcers. A token economy depends on the standards of operant molding and behavioral financial matters and can be arranged inside connected conduct investigation. In connected settings token economies are utilized with kids and grown-ups; be that as it may, they have been effectively demonstrated with pigeons in lab settings.
a substantial increase in demand for factory
labor during World War II.
the mass migration of African Americans to
northern cities.
