Tocqueville wrote, “in America I saw more than America.” What did he mean by this?

He meant that democracy was inevitable

Explanation:

Alexis Tocqueville was part of the aristocracy but he believed that the time of aristocrats was slowly coming to an end, to be replaced by democracy, which America was practicing at that time so he strongly believed that there was a coming "democratic revolution". which made him become very interested in America and made him visit the States.

He was of the opinion that America had successfully found a way to make almost everyone equal before the law, which was unlike the aristocracy so he confessed that while he came to America to look at the image of democracy, he saw more than America because he saw both the good and bad side of the country which cemented his belief that democracy was inevitable.

I believe the answer your looking for is A correct me if I'm wrong hope this helps.