GWD-30-Q41

Elk now live almost solely in the Rocky Mountains, which would make it seem that elk are mountain

dwellers, while they once ranged over virtually all of the continental United States except for a small strip in the extreme Southwest.
A. Elk now live almost solely in the Rocky Mountains, which would make it seem that elk are mountain dwellers, while
B. The fact that elk now live almost solely in the Rocky Mountains would make it seem that they are mountain dwellers, but
C. It would seem that elk would be mountain dwellers because of their living now solely almost in the Rocky Mountains, but still
D. Now living almost solely in the Rocky Mountains, it would seem that elk were mountain dwellers, although
E. It seems that elk would be mountain dwellers from the fact that they now live solely almost in the Rocky Mountains, since

NN指点一下啦！答案说是B。我有些疑惑！！

顶起，我觉得E好像也没错~~大家分析一下E错哪了？其他几项错误好像都比较明显

since是既然的意思.表原因.

句子意思表转折.