Which of the MLA and APA citations below are formatted correctly? a. APA: Doerrenberg, Philipp, and Andreas Peichl. "Progressive Taxation and Tax Morale." Public Choice, 155.3 (2013): 293-316. MLA: Doerrenberg, P., & Peichl, A. (2013). Progressive taxation and tax morale. Public Choice, 155(3), 293-316. b. APA: Wenz, P. (2012). Take back the center: Progressive taxation for a new progressive agenda. Cambridge, MA: MIT Press. MLA: Wenz, Peter S. Take Back the Center: Progressive Taxation for a New Progressive Agenda. Cambridge, MA: MIT Press, 2012. c. APA: Carroll, R. , & Viard, A. D. (2012). Progressive Consumption Taxation: The X Tax Revisited. AEI Press. MLA: Carroll, Robert, and Alan D. Viard. Progressive Consumption Taxation : The X Tax Revisited. AEI Press, 2012.