Which answer(s) are correct and what is the reasoning?

The following represents demand and supply curves in the market for secondhand customised nerf guns. - Demand curve - - - Supply curve 140 - 135 - 130 - 125 - 120 - 115 - 110 - 105 - 100 95 - 90 - 85 - 80 - 75 - ice P 70- E 65- 60 - 55 - 50 - 40 - 30 - 25 - 20 - 15 - 10 - 2.5 7 .5 10 12.5 15 17.5 22.5 25 27.5 30 32.5 35 37.5 Quantity Q Which of the following statements are correct? O a. At 170, some of the sellers have an incentive to increase their selling price to 180. O b. 40 units will be sold in total. O c. At 170, the market clears. O d. At price 190, there is excess demand for nerf guns