As compared to western settlement of Greenland, since the eastern settlement of Greenland lies farther south, is less marginal for Norse hay production, supported more people, it was thus less at risk of collapse.A) As compared to western settlement of Greenland, since the eastern settlement of Greenland lies farther south, is less marginal for Norse hay production, supported more people, it was thus less at risk of collapse.
B) As compared to western settlement of Greenland, since the eastern settlement of Greenland lay farther south, was less marginal for Norse hay production, supported more people, it was thus less at risk of collapse.
C) Compared to western settlement of Greenland, eastern settlement of Greenland lay farther south, was less marginal for Norse hay production, supported more people, and was thus less at risk of collapse.
D) When compared to western settlement of Greenland, the eastern settlement which lies farther south, was less marginal for Norse hay production, supported more people; it was less at risk of collapse.
E) When compared to western settlement of Greenland, because the eastern settlement lay farther south, was less marginal for Norse hay production supported more people; and hence it was less at risk of collapse than the other.