Answer:
The answer is the option which is 1966 to 1979.
Explanation: The years between 1966 to 1979 are important because of the most significant accomplishments were made in achieving racial equality.
During these years the civil rights movements became more strong and concern about their rights. They also demanded political and economical equality. But apart from everything the most significant event was the pass of the Civil Right Act 1968. This law bans the discrimination in sales,rental or financial housing based on race.
