What Is the Primary Reason for Growth of Mobile Advertising

Multiple Choice

What is the primary reason for growth of mobile advertising?

A) It is novel so marketers are testing it.
B) More and more people are using smartphones and other mobile Internet devices.
C) Marketers cannot differentiate between mobile advertising and advertising on social media networks.
D) Marketing budgets have dramatically increased, so there is extra money to experiment in mobile outlets.
E) Consumers think all mobile advertising is credible, regardless of its source.