GMATPREP-21

Fundjuhl总结的GMATprep语法题一道（有她/他的解释），比来比去，我也只有选B。

我知道 whether+子句, 不定詞,

窮極畢生, 還沒有看過這樣的用法...有沒有人可以帮忙給清楚點的解釋??

谢谢

21. Shipwrecks are more likely to be found undisturbed at great depths than in shallow costal waters, which exposes archaeological remains to turbulence and makes them accessible to anyone in scuba gear, whether they be archaeologist, treasure hunter, or sport diver.

A. than in shallow costal waters, which exposes archaeological remains to turbulence and makes them accessible to anyone in scuba gear, whether they be

B. than in shallow costal waters, where archaeological remains are exposed to turbulence and are accessible to anyone in scuba gear, whether
            

C. as opposed to shallow waters along the coast, where archaeological remains are exposed to turbulence and accessible to anyone in scuba gear, including

D. instead of in shallow waters along the coast, which exposes archaeological remains to turbulence and making them accessible to anyone in scuba gear, including an

E. instead of shallow coastal waters, because it exposes archaeological remains to turbulence and make them accessible to anyone in scuba gear, whether

嗯，还真没注意到，查了一下whether可以做pron. 那么应该可以加noun , 你google一下可以发现到这样的用法： whether me or someone else.