Answer
c
Work Step by Step
Explanation by the first 3rd and 5th person leads to the stated outcome.
First person: leads to the conclusion that whenever supply is perfectly inelastic, any increase in demand will only lead to raise in price while quantity sold will remain unchanged.
Third Person: when demand increases and supply decreases, however in same magnitude, then price of goods raises while there is no change in quantity sold.
Fifth Person: When demand is perfectly inelastic, any decrease in supply will only raise the price while quantity sold will remain unchanged.
