Consider the demand curve illustrated in the figure to the right. Is demand elastic or inelastic? O A. Demand is elastic at all prices above $9.00 and inelastic at all prices below $9.00. OB. Demand is elastic at all prices above $7.00 and inelastic at all prices below $7.00. OC. Demand is elastic (at all prices). O D. Demand is inelastic at all prices above $9.00 and elastic at all prices below $9.00. O E. Demand is inelastic (at all prices). At what price is total revenue maximized? Total revenue is maximized when price equals $ (Enter your response as a real number rounded to two decimal places.) 20 18- 16- 14- 12- 10 8 6- 4- 2- 10 12 Quantity 14 16 18 20