(OUP-U3Ql7) The figure shows a student's feasible frontier and her in difference eurves for her final exam grade and the hours of free time per day. Based on this information, which of the following statements is correct? 100 90 Feasible frontier 19 24 Hours of free time per day (A) The student prefers D to C, as D is on the feasible frontier. (B) A or B may be chosen over C despite being on a lower indifference curve, as the student would never choose a point below the feasible frontier. (C) Any points above 103 are strictly preferred to the student's nal choice but are unattainable. (D) The student should try to attain as high a grade as possible