In hoyt’s model of human settlement, factories and upper-class residential areas radiate from the center of the city along
a. waterwaysb. fields and farmlandc. transportation routesd. central business districts

it provided for selection of government employees through competitive examinations. it also made it unlawful to fire or demote covered employees for political reasons or to require them to give political service or payment, and it set up a civil service commission to enforce the law.

explanation:

they supported black codes so the answer is a or b