When chief justice john marshall wrote "a law repugnant to the constitution is void" in the case marbury v. madison, what was he claiming?
a. the framers should have taken more care designing the legislative branch.
b. laws unsupported by the constitution are automatically unlawful.
c. the supreme court will take over lawmaking duties should it be necessary.
d. the supreme court has the right to declare laws of congress unconstitutional.