Are the price and quantity combinations above for a perfectly competitive firm (One firm)? Question 11 Select one: a. Yes, they are because the demand curve is downward sloping. a. Yes, they are because the demand curve is downward sloping. b. No, they are not because the demand curve should be perfectly elastic. b. No, they are not because the demand curve should be perfectly elastic. c. No, because the quantities are too low. c. No, because the quantities are too low. d. Yes, they are because the price falls the same amount for each increase in quantity