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. Heep o 2.5 5 7.5 10 12.5 15 17.5 20 22.5 25 23.5 an 32.5 35 33.5 40 Want\"! 0 Which of the following statements are correct? a. Deadweight loss is 37.5 b. Producer surplus is 400. c. Consumer surplus is 625. d. Tax revenue is 375