Why do slave shave more freedom in new england as oppose to virginia?

The first African immigrants to the North American colonies arrived in Virginia in 1619. The status of these newcomers differed little from that of the white indentured servants who far outnumbered them. By the end of the century, however, the black population had grown and colonial laws recognized a new sort of bondage that was based upon race: chattel slavery.

The answer should be d.