He does not have any benefits
The answer is B: the southern colonies refused to allow farmers to grow crash
Technically speaking, the views of the Federalists were not at all consistent with the original purpose of the convention, since this original purpose was to create a "weak" central government, and the Federalists were in favor of creating a much "stronger" one.
The answer to your question is B. The mayflower compact.
They wanted to have the religious freedom not rightfully given to them back in Europe, so they signed the compact to let them self govern themselves!