Answer: C - According to the 1965 Immigration Act, occupation would be the main factor for admission to the United States.
Key Takeaway: The 1965 Immigration Act finally ended immigration quotas based upon national origin, making it illegal to deny admission to the United States based upon race, gender, or religion. As of 1965, the main factor for admission into the United States was occupation and skills, with a preference for individuals with family already residing within the contiguous United States.