Why did interest in national politics wane in the early nineteenth cen

Why did interest in national politics wane in the early nineteenth century?

a. Many people began to believe that all politicians, especially those far-removed from their constituency, were corrupt.
b. Most people were focused on state politics because of a rise in political parties and internal strife.
c. Many people were distracted by the changes in the Supreme Court and paid less attention to national politics.
d. Most people were satisfied by the geographical and economic growth of the country, so they were not concerned with national politics.
e. Many people still distrusted a strong central government and therefore wanted to develop their state governments rather than the federal one.

ANSWER
D