Why Do Many Political Scientists and Economists Believe That States

Why do many political scientists and economists believe that states and localities should not be in charge of redistributive programs?

A) States and local governments have to compete with each other and therefore do not have an incentive to spend money on the needy people in their areas.
B) Elected officials at the state and local levels are typically more discriminatory than elected officials at the national level.
C) State and local governments are wasteful and are too often plagued by corruption and bribery.
D) State and local governments have fewer powers under the Constitution to impose taxes and spend money than the federal government.