Respuesta :
The right answer for the question that is being asked and shown above is that: "The 1960 census revealed that the U.S. population had just passed the 200 million mark and was the first toask questions about ethnic background."
Answer:
IT IS NOT a. The 1960 census revealed that the U.S. population had just passed the 200 million mark and was the first to ask questions about ethnic background.!!!! I KNOW THIS 100%