Professor Goodheart's Colleague Dr

Professor Goodheart's colleague Dr.Kremepuff gives 3 midterm exams.He drops the lowest score and gives each student her average score on the other two exams.Polly Sigh is taking his course and has a 60 on her first exam.Let x₂ be her score on the second exam and x₃ be her score on the third exam.If we draw her indifference curves for scores on the second and third exams with x₂ represented by the horizontal axis and x₃ represented by the vertical axis, then her indifference curve through the point (x₂, x₃) = (50,70) is

A) L-shaped with a kink where x₂ = x₃.
B) three line segments, one vertical, one horizontal, and one running from (70, 60) to (60, 70) .
C) a straight line, running from (0, 120) to (120, 0) .
D) three line segments, one vertical, one horizontal, and one running from (70, 50) to (50, 70) .
E) a V-shaped curve with its point at (50, 70) .

Correct Answer:

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