Which of the Following Is True of the Supreme Court

Which of the following is true of the Supreme Court case of McCulloch v.Maryland (1819) ?​ 

A)  It involved the full faith and credit clause on the issue of the legitimacy of gay marriage in the state of Maryland.​ 
B) It involved the question of taxes imposed by the federal government on the bank of Maryland. 
C) It dealt with the constitutionality of a state action that conflicted with a national government action. 
D) It was ruled that states could use its taxing power to tax an arm of the national government. 
E) It was ruled that the federal government was not authorized to establish a bank as such a power was not enumerated in the Constitution.