How does federalism contribute to democracy?

How does federalism contribute to democracy?
 
  a. It increases citizens' access to government.
  b. It increases the gross domestic product.
  c. It lowers voter turnout.
  d. It lowers overall tax rates.

Question -2-

The USA Patriot Act enhances the government's ability to do which of the following?
 
  a. examine private records
  b. take personal property
  c. imprison citizens without trial
  d. issue pardons for those accused of war crimes

Question -3-

Federalism allows citizens significantly more opportunities to __________.
 
  a. invest in the stock market
  b. become a civil engineer
  c. find gainful employment
  d. participate in politics