The Forrester Research Shows the Amount of Advertising Being Spent

The Forrester Research shows the amount of advertising being spent in various types of online marketing, with mobile and social marketing having the lowest expenditures through 2012, due in large part to the:

A) simple nature in which social media are utilized.
B) lack of true advertising experiences within the media.
C) absence of the human element.
D) lack of a distributed network.
E) predominately passive nature of consumption.