If state laws conflict with federal laws, the ______________ ensures states enforce federal law. ...

If state laws conflict with federal laws, the ______________ ensures states enforce federal law.
 
  a. Supremacy Clause.
  b. Necessary and Proper Clause
  c. General Welfare Clause
  d. Interstate Commerce Clause
  e. Tenth Amendment

Question -2-

The primary way the general welfare clause has been used to expand national powers is through the national government
 
  a. directing antipoverty programs.
  b. forcing state governments to operate the antipoverty programs.
  c. regulating the civil rights policies of state governments.
  d. giving money to states to operate programs according to national standards.
  e. controlling the state and local police.