Which of the Following Statements Would MOST Weaken the Argument

Which of the following statements would MOST weaken the argument for using internet as advertising?

A) In totalitarian countries,the internet is not free of political content.
B) Pop-up ads are very annoying to consumers.
C) Research shows that internet ads that are not intrusive are not even noticed.
D) While the internet has interactive capabilities,they are generally not used in a creative way.
E) People who spend a lot of time online are media multi-taskers.