一道absolute phrase题

CheneryYes!

OG18-790
Found only in the WesternHemisphere and surviving through extremes of climate, hummingbirds' rangeextends from Alaska to Tierra del Fuego, from sea-level rain foreststo the edges of Andean snowfields and ice fields at altitudes of 15,000 feet.

A.Found only in the Western Hemisphere and surviving through extremes of climate, hummingbirds' range extends
B.Found only in the Western Hemisphere, hummingbirds survive through extremes of climate, their range extending
C.Hummingbirds, found only in the Western Hemisphere and surviving through extremes of climate, with their range extending
D.Hummingbirds, found only in the Western Hemisphere and surviving through extremes of climate,  their range extends
E.Hummingbirds, found only in the Western Hemisphere, survive through extremes of climate, and their range extends


正确答案B，请问有人能解释下B为啥对吗？我一开始看b的时候，看到their range extending就用缺谓语排除掉了……og解释说the use of the absolute phrase their range extending appropriately connects the finnal clause to the rest of the sentence.不理解啊！！！

还有就是，我选了E，看了og解释后，我可以这样分析E选项的错误吗？
“X,Y,and Z”结构，要么就是X,Y,Z各为clause，要么就是X,Y,Z都平行。现在X,Y都是同一个主语的谓语动词，但Z却是另外一个主语的clause。∴错

CheneryYes!

求牛牛指教

CoralUT

不知道还看不看的到，后面那个是独立主格，不是独立句子