Please note that I already solved the first part of the question, so focus on the second part.

AND option E is not the correct answer

What is the formula for the price elasticity of demand? The formula for the price elasticity of demand is the percentage change in price divided by the percentage change in quantity demanded. the percentage change in quantity demanded divided by the percentage change in price. the change in quantity demanded divided by the price. the change in quantity demanded divided by the change in price. the percentage change in quantity demanded divided by the percentage change in quantity supplied. Why isn't elasticityjust measured by the slope of the demand curve? {3 A. The slope of the demand curve is often unknown. 5:} B. Price elasticity of demand is the same as the slope of the demand curve. C. The measurement of slope is sensitive to the units chosen for quantity and price. if} D. The slope of the demand curve is negative. {1- E. The slope of the demand curve changes along the curve