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, where the government imposes a tax of 15 per gun sold. - Demand curve - -- Supply curve -=1=1=*= Supply curve + tax 140 - 135- 130- 125 - 120 - 115 - 110 - 105 - 100 - 95 - 90 - 85 - 80 - 75 - Price 65 - 60 - 55 - 50 - 45 - 25 - 20 - 15 - 10 - 2.5 7.5 10 12.5 15 17.5 22.5 25 30 32.5 37.5 Quantity Q 27.5 35 Which of the following statements are correct? O a. Sellers' after-tax revenue is 80 per unit sold. O b. The quantity traded is not the Pareto efficient quantity O c. Buyers pay 70 per unit purchased. d. The tax has no deadweight loss since demand is inelastic. O e. Tax revenue is 15 * 30 = 450. O f. Buyers pay 80 per unit purchased