Which statement is correct?
a. A shortage of goods and services may occur due to the establishment of a price ceiling.
b. An excess of goods and services may happen after a price floor is imposed.
c. Imposing price ceilings benefits both producers and consumers.
d. When a price floor is imposed, all producers and individuals benefit.
e. Price ceilings are imposed in order to limit the amount of some necessary good or service that consumers can buy.