Suppose the demand for rescue services in our national parks is perfectly inelastic. This fact would mean that a 31 percent increase in rescue fees leads to
◦ a 31 percent decrease in the quantity demanded.
◦ a 31 percent increase in demand.
◦ a 31 percent decrease in demand.
◦ no change in the quantity demanded.
◦ a decrease in the quantity demanded to 0 rescues.