The Harlem Renaissance:
a. describes the quest by writers like Claude McKay to locate the roots of the black experience.
b. marked a turning point in race relations in America.
c. has often been compared to 21st century "gentrification" efforts in the urban Northeast.
d. was a phrase coined by Winston Churchill.

marked a turning point in race relations in America

Explanation:

Harlem Renaissance is defined as artistic,  intellectual, social,  artistic growth which started  in Harlem, Manhattan, New York City, around the year 1920's.   It is also  called the "New Negro Movement".  

answer; /// i believe its(c) policymakers prioritize the various problems facing the state;