PLEASE HELP!
Which action caused the greatest change for Native Americans during the 1960s and '70s? Martin Luther King, Jr. staged rallies on reservations to gain publicity for their cause. President Johnson ordered that all Native American reservations be disbanded. American courts decided in their favor in treaty disputes, giving them land and monetary reparations. The U. S. government appointed Ben Nighthorse Campbell to head the Bureau of Indian Affairs.

b) a state law could be declared illegal if it contradicted the constitution.

explanation:

the conflict of this case originated when james w. mcculloch, a cashier of the baltimore branch of the second bank of the united states that the congress had chartered in 1816, refused to pay a tax imposed by the maryland state.

in the case, the state of maryland appealed that the establishment of a second bank was unconstitutional since the constitution didn't say anything about granting that power to congress. however, the case determined that even if such right wasn't specifically stated in the constitution, it was part of the "implied powers" of the government enunciated in article i, section 8.

the case also eliminated maryland's legislation to impose taxes to a national bank, asserting that even though the states retained the power of taxation, the constitution's laws are supreme and can not be controlled by the states, therefore, if a state law contradicts the constitution, it should be declared illegal.

explanation:

the answer is suffrage

b is the answer i am assuming