Which of the Following Practices Are, at Least in Part

Multiple Choice

Which of the following practices are, at least in part, attempts to reduce moral hazard problems?

A) Parking ramps require customers to take a ticket with the time stamped on it from a machine in order to gain entrance.
B) Factory workers are paid by the hour.
C) A restaurant owner works long hours in order to make more profit.
D) None of the above are correct.