Bell & Rubio,a Camera Manufacturing Company,hires Actors in Different Cities

Multiple Choice

Bell & Rubio,a camera manufacturing company,hires actors in different cities to approach strangers and ask them to take their picture with a Bell & Rubio camera.The actors strike up conversations with people,tell them about the advantages of the camera,and encourage them to buy one for themselves,without informing them that it's an advertising campaign.In this example,Bell & Rubio uses which of the following strategies?

A) social commerce
B) data mining
C) permission-based marketing
D) stealth marketing
E) projective techniques