McDonald's Restaurants Use a Monopoly Game to Allow Customers to Win

McDonald's restaurants use a Monopoly game to allow customers to win various prizes. Each game piece that you receive as a result of a purchase either awards you a prize or fills in one section on a Monopoly board. Prizes can also be won if you own all the pieces of the railroads or all of one colour of property. This is an example of a:

A) service-oriented sales promotion
B) consumer sales promotion
C) primary demand advertising campaign
D) direct-response advertising campaign