og121中的几个关于of的小问题

121. The concept of the grand jury dates from the twelfth -century, when Henry II of England ordered panels of
common citizens should prepare lists of who were their communities' suspected criminals.
(A) should prepare lists of who were their communities' suspected criminals这里of短语后接疑问词，对嘛？
(B) would do the preparation of lists of their communities' suspected criminals这里of和's的形式同时出现，对嘛？

(C) preparing lists of suspected criminals in their communities
(D) the preparing of a list of suspected criminals in their communities这里preparing是否应该是preparation更好啊？
(E) to prepare lists of suspected criminals in their communities

谢谢nn

order A to do

order that (should)

谢谢两位的及时回答。

我知道这题是在考order的用法，也搜索了已有的全部帖子问题基本搞清了，只是这几个of的用法还很模糊。希望能够得到关于of的解释，谢谢。