Answer:
a. above the equilibrium price, causing a shortage.
Step-by-step explanation:
A price floor is binding when it is set above the equilibrium price, causing a shortage.
A price floor is the lowest legal price that can be paid in a market for goods and services, labor, or financial capital. When a price floor is set, government purchase the excess product in the market so as to maintain the new price thus resulting in a shortage of the product.