The foremost constitutional challenge to the authority of the federal

The foremost constitutional challenge to the authority of the federal government faced by President Jackson during his tenure as president was

A) the threat of South Carolina and several other southern states to secede from the Union.
B) the assertion by states’ rights advocates in several southern states that they had the right to sue the United States in the Supreme Court to uphold a state’s Tenth Amendment rights against unconstitutional federal intrusion on state powers.
C) the asserted right of nullification by political leaders in South Carolina, which was a constitutional doctrine stating that each state had the unilateral right to declare a national law null and void within its borders.
D) the asserted right by several southern states that a state could refuse to provide state militia assistance to help the federal government evict Indians from their native lands.

ANSWER
Answer: C