In 2006, the average price of a daily newspaper subscription was 50 cents. Today, the average price of a daily newspaper subscription is $1.00-$1.99. Three different explanations have been offered for the increased price of a newspaper.

a. One possibility is that people have become more interested in reading newspapers. Use supply-and-demand analysis to explain whether this explanation could be correct.

b. Another possible explanation is that the higher costs of paper and ink (for printing the newspapers) and the higher price of gas (for distributing the newspaper) have increased the price of the newspaper. Use supply-and-demand analysis to explain whether this explanation could be correct.

c. A third suggestion for why the price of a newspaper has increased is that more people are reading news on the Internet for free. Thus, newspapers have had to increase their price to make up for the fewer numbers of newspapers they sell. Use supply-and-demand analysis to explain whether this explanation could be correct.