The national asphalt pavement association (napa) announced that staker and parson companies won its community involvement award for "rocks build our world", an outreach program for elementary schools. the rocks build our world program includes both group tours of the company's corporate office facility and classroom visits targeted to fourth graders. the classroom visits start with some basic information on geology, mining methods and the uses of minerals in every day life. this is an example of:
a. press agentry
b. sales promotion
c. community involvement
d. societal advertising
e. advocacy advertising