Please explain answer.

Mr. Krabs is thinking about closing The Krusty Krab because he is not making as much money as he once did. Mr. Krabs discovers that there is a large market for used restaurant fixtures and equipment. He also finds that it will be easy to sell his building because it can be converted into any number of other kinds of businesses. Mr. Krabs research demonstrates the existence of ________ in the restaurant industry.

a. high capital requirements

b. intense rivalry

c. low exit barriers

d. little customer loyalty

e. All of the above.