As America has grown, so have/has a. the powers of the states relative to the federal government
b. our reliance on local rather than national policy
c. our expectations of what the government will do for us
d. the protections provided to marginalized groups

the answer is b for brother

answer: the third option is your answer

explanation:

during the 20th century, the role of the vice president has evolved into more of an executive branch position. now, the vice president is usually seen as an integral part of a president's administration and presides over the senate only on ceremonial occasions or when a tie-breaking vote may be needed.