Many people buy one newspaper per day, but rarely do they buy two of the same newspapers on the same day.What is the economic justification for this behavior?

a.The marginal benefit of purchasing the second newspaper exceeds the marginal cost of purchasing that paper.

b.The marginal cost of purchasing the second newspaper exceeds the marginal benefit of purchasing that paper.

c.The marginal benefit of purchasing the second newspaper equals the marginal cost of purchasing that paper.

d.none of the above is an appropriate economic justification for this behavior.