Which of the Following Significantly Enhanced the Effect of the WOM

Which of the following significantly enhanced the effect of the WOM campaign used to promote Latte Lite for Dunkin' Donuts?

A) BzzAgent used the WOM campaign in all of the major markets served by Dunkin' Donuts to drive national sales of the new product.
B) Volunteers working for BzzAgent tested the new product and provided valuable feedback before it was sold in control markets.
C) BzzAgent established clear objectives and tactics for the WOM campaign and implemented a system for measuring the results.
D) BzzAgent combined WOM with radio advertising to saturate control markets with information about the new product.
E) Information packets about the new product were provided to BzzAgents to be distributed to customers at point-of-purchase kiosks.