Taxing citizens , building and maintaining roads , trying convicting and pushing citizens for crimes

Taxing Citizens - The Legislative arm of government is responsible for making tax laws.. . Building and Maintaining Roads - This Executive arm of government is responsible for building and maintaining roads. Though some of these projects are funded by the Federal government, the responsibility of building is on the State governments. but can be delegated to counties, cities and towns. . Pushing citizens for crimes - The judiciary arm of government is responsible for interpreting the law and giving verdicts on legal consequences of crimes.

a historian researching the immigration policies of the early 1900s would expect a source written today,rather than in 1910 to :

( a ) be more interested in objective data and statistics.

i would go with the last one