One of the Problems with Internet Advertising Is That the Audience

One of the problems with internet advertising is that the audience controls what it is exposed to,and consumers are therefore able to avoid unwanted ads.Which of the following is the BEST response to this problem?

A) Internet advertising motivates target audiences to learn more about products that interest them.
B) When you think about it,exposure control is actually a problem with all media types.
C) The consumer's ability to avoid unwanted ads is an important privacy issue.
D) Audiences can be forced to watch the entire advertising message by using a certain technology.
E) Internet advertising is so new that it is impossible to evaluate its effectiveness.