John Marshall's Supreme Court decisions had what significant effect?

Question

A.They strengthened the power of the federal government
B.They strengthened the power of state government.
C.Most of them have been found to unconstitutional
D.They weakened the power of the federal government

Answer 1

A. he was known as a Federalist judge so I would say his decisions strengthened the power of the federal government

Answer 2

A. His decisions showed that federal power overruled states' rights so it's A, and his side that prefers federal power, were loose constructionists, so this cancels out B, D, and E.