Which statement describes the long term impact of civil war

Complete question:

Which statement describes a long-term effect of the Civil War?

A) Military leaders began to run for political office more frequently.

B) The American population became more divided by regional cultural differences.

C) The president became a more important and powerful political figure.

D) African Americans began to exercise a significant amount of political power

C) The president became a more important and powerful political figure.

Explanation:

Prior to the civil war, the power of the states government can be considered to  be stronger than the Federal government. The constitution did not necessarily stated that the states had to completely obey the federal government.  So,  president was considered as somewhat a weak figure compared to State governor.

But, the civil war provided that a president can united several states in order to fulfill one single goal.

After the civil war, presidents started to be seen as a powerful political figure and officially strengthen the states' perception regarding the authority of the federal government.

i confess that there are several parts of this constitution which i do not at present approve, but i am not sure i shall never approve them: for having lived long, i have experienced many instances of being obliged by better information or fuller consideration, to change opinions even on important subjects, which i once thought right, but found to be otherwise. it is therefore that the older i grow, the more apt i am to doubt my own judgment, and to pay more respect to the judgment of others.

by 1880, germany had more rail lines than great britain and russia.