After the seventeenth amendment was ratified in 1913 how were u. s senators selected
a) by the u. s house of representatives
b) by a lottery system
c) by electoral college
d) by a direct vote of the people

Which factor best suggests a cause for the urban problems shown in this table? (3 points) increasing discriminatory housing practices shifting population density gradients over time declining urban renewal efforts by city governments declining basic employment sector in industrial cities increasing gentrification efforts in the inner cities