Public facilities, such as schools, parks, and libraries assigned to blacks, were always inferior to those for whites. and, through laws, customs, and intimidation, whites blocked blacks' access to the better jobs, nicer houses, and, greater political influence that whites enjoyed. black people throughout the south were quarantined and treated as if they might contaminate white people with an infectious disease. which words best describe the tone of the excerpt? sentimental and positive critical and angry intellectual and curious polite and restrained