Referring to Table 2-1: Possibility A Economics History 94 76 II 87 84 III 77 91 Table 2-1 Referring to Table 2-1: A student has only a few hours to prepare for two different exams this afternoon. The above table shows alternative possible exam scores with three alternative uses of the student's time. The opportunity cost of scoring a 94 on the economics exam rather than a 77 is: a) 8 points on the history exam. (b) 14 points on the history exam. c) 15 points on the history exam. O d) 17 points on the history exam