求助OG上的语法...卡住了...

陌下清风

Combining enormous physical strength with higher intelligence. the Neanderthals appear as equipped for facing any
  obstacle the environment could put in their path, but their relatively sudden disappearance during the Paleolithic era
  indicates that an inability to adapt to some environmental change led to their extinction.
   (A) appear as equipped for facing any obstacle the environment could put in their path,
   (B) appear to have been equipped to face any obstacle the environment could put in their path,
   (C) appear as equipped to face any obstacle the environment could put in their paths,
   (D) appeared as equipped to face any obstacle the environment could put in their paths,
   (E) appeared to have been equipped for facing any obstacle the environment could put in their path,

B和C已经给我绕迷糊了，哪个看着都像对的...正确答案是B，那C错在哪里啊？希望有人帮我解决这个问题，谢谢~~~

m8888302

感觉没有appear as 这种用法