Q1:GWD32-Q2 应该选哪个？

Q1:GWD32-Q2   

Written in ink or engraved by stylus, more than 2,000 letters and
        documents on wooden tablets excavated at the site of the old roman
        fort at vindolanda in northern England are yielding a historical account
        of the military garrison in the first and second centuries that are so
            vivid in their details about personal life as they are from Pompeii
             

A.      are so vivid in their details about personal life as they ate

B.      are as vivid in their details of personal life as those gathered

C.      is as vivid in their detail about personal life as that gathered

D.      is as vivid in its details of personal life as that gathered

E.       is so vivid in its details of personal life as is that

我选的是D   答案是B   论坛上发的贴子解释为D ,到底这题是什么？是何原因？

LS正解啊。。

做题的时候一直在考虑是指代哪一个。。

最后还是觉得

more than 2,000 letters and  documents on wooden tablets

更合理一些。。

不过这样貌似会有歧义而且修饰对象也太远了。。。