Answer:
c. measures changes in quantity demanded more accurately than elasticity.
Step-by-step explanation:
Base on the scenario been described in the question, slope measures changes in quantity demanded very accurately compared to elasticity. The main for this reason is that m, slope and elasticity are not the same concepts. Slope evaluates the
flatness or steepness of a line in terms of the evaluating units for price and quantity, while elasticity evaluates the relative response of quantity to changes in price.