If you want to look up a word in a dictionary, which floor would you go to ______.

A．There are too many pages or hyperlinks on the Internet, so people usually use search engine to find a certain site.
B．More than 8 search engines are accused of selling their search engine spots by Commercial Alert.
C．The headquarters of Commercial Alert is in Portland Oregon.
D．The search engines are Web guides.

A．Sending pages of information
B．Sending E-mail
C．Surfing the net
D．Selling the top spot