The Fourth Grade Class at Westview Elementary School Won $10,000

The fourth grade class at Westview Elementary School won $10,000 for their school's music program because they entered a contest sponsored by Oscar Mayer bologna in which they sang the famous jingle for that brand (i.e., "my bologna has a first name, it's O-S-C-A-R....") and won it for their state. This is an example of _____.

A) in-school ads
B) ads in classrooms
C) corporate-sponsored educational materials and programs
D) corporate-sponsored contests and incentive programs
E) mobile games