Shafia and Xing each have 6 hours per day. Each hour, Shafia can either 1.5 pages of code or 0.5 pages of research paper. Each hour, Xing can either 2 pages of code or 1 pages of research paper. Assume that the quality is not important, and we can measure research and coding by pages. a) If they work separately, both Shafia and Xing code and write papers. For each guy, what is the opportunity) cost of one more page of coding? b) Who has the absolute advantage in coding? Who has the comparative advantage in coding? c) Shafia and Xing want to collaborate together. How should they allocate their time? d) Assume that Shafia and Xing collaboration concludes to an outcome where 14 pages of code have been efficiently produced. How many pages of research have been produced with their collaboration? e) What is the opportunity cost of an extra page of research