The above table shows Homer's utility from boxes of doughnuts. As Homer's consumption of doughnuts increases, his
A) marginal utility is positive and increasing.
B) marginal utility is positive but decreasing.
C) marginal utility is negative but increasing.
D) marginal utility is negative and decreasing.
Question 2
In the above table, the firm
A) must be in a perfectly competitive market because its marginal revenue is constant.
B) must be in a perfectly competitive market because its marginal cost curve eventually rises.
C) cannot be in a perfectly competitive market because its short-run economic profits are greater than zero.
D) cannot be in a perfectly competitive market because its long-run economic profits are greater than zero.
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