Was the main cause of the death of
Reconstruction

Historians overwhelmingly have blamed the demise of Reconstruction on Southerners' persistent racism. Heather Cox Richardson argues instead that class, along with race, was critical to Reconstruction's end.

Explanation:

Historians overwhelmingly have blamed the demise of Reconstruction on Southerners' persistent racism. Heather Cox Richardson argues instead that class, along with race, was critical to Reconstruction's end.

there are no mutiple choices here

necessary and proper clause. the congress shall have power to all laws which shall be necessary and proper for carrying into execution the foregoing powers, and all other powers vested by this constitution in the government of the united states, or in any department or officer thereof.