The Federalist papers is a compilation of articles written by Alexander Hamilton and James Madison, as well as a few by John Jay, since each of them were advocates of the Constitution.
(A) since each of them were
(B) since they were each
(C) since all of them were
(D) each of which was
(E) because all of the men were
Does the use of "as well as" has any bearing on the use of "all"? Should "both" (if there were an option) be used instead?