Disadvantage of Using the Internet as an Advertising Medium Is

disadvantage of using the Internet as an advertising medium is

A) as a relatively new medium, it has attracted limited use.
B) the click-through rate has been declining because consumers are developing "banner blindness."
C) pay-per-click search ads on Google are expensive and ineffective.
D) it is difficult to translate messages that can be used in social media networks like Facebook and Twitter.
E) it often creates more traffic than a firm can actually handle.