According to the graph, internet use in the united states since 1990 has declined. remained the same. increased slightly. increased greatly.

The correct answer is - increased greatly.

During the 1990's, the internet was still a new thing and it was gaining of popularity little by little, mainly among the younger population, but in the 2000's and onward, the internet made a boom, and it saw a great increase in usage. The increase was not just among the young population, but also the people in their mid-ages, and even the elderly people. Apart from the attractiveness of the internet that it was offering a lot of information, big portion of its popularity was the introduction of the social web pages.

can someone just answer this