Answer:
a. The market price of editorial services increases. This will cause a(n)
C. decrease in supply.
Explanation:
The event that triggers the market price of editorial services to increase will also increase the quantity of editorial services offered, and increase the cost of economics textbooks. As a result, it decreases the quantity supplied. The producers or publishers of economics textbook may not be able to pass the increased cost to consumers. They may not even have the resources to publish more books with an increased cost of editorial services. It is only the editors who offer editorial services that will benefit from the market price increase, but only in the short-run.
