Daniel Webster was an outspoken advocate of which group?

None, apparently. Or were you given possible answers to decide among?

Daniel Webster was an outspoken advocate of the Federalist Party. To find information about Daniel Webster's political affiliations and advocacy, you can research reliable sources such as historical books, biographies, or articles. You can start by searching for keywords like "Daniel Webster political affiliation" or "Daniel Webster advocacy." Additionally, you can consult primary sources such as speeches and writings by Daniel Webster himself to gain insight into his political views and the groups he supported.

If your text materials/assigned reading do not discuss Webster's career, this does:

http://www.biography.com/people/daniel-webster-9526186