Final answer:
The correct answer is that President Johnson knew the Civil Rights Act of 1964 came at a heavy political price to Democrats. This act banned discrimination and established the Equal Employment Opportunity Commission.
Step-by-step explanation:
The correct answer to the question “What was true about the Civil Rights Act of 1964?” is option C: President Johnson knew it came at a heavy political price to Democrats. This landmark legislation, which President Johnson signed into law, comprehensively tackled racial discrimination. It banned discrimination in public accommodations, schools, and employment, and also established the Equal Employment Opportunity Commission to monitor and enforce bans on employment discrimination. As reflected in historical accounts, President Johnson was acutely aware that pushing the Civil Rights Act through could potentially alienate Southern Democratic voters, leading to a heavy political cost.