In the following passage, some of the words have been left out. Read the passage carefully and select the correct answer for the given blank out of the four alternatives.
In its _______________ phase, the big telco monopolies tried to levy a "tax" on all Internet content __________________. The Internet companies were then the new kids on the _________________. They and the Internet user community fought back such attempts. This was the first net neutrality war, and it ______________ the principle of ________________ on the Internet between different types of content or sites.