再问og 126

126. More than thirty years ago Dr. Barbara McClintock, the Nobel Prize winner, reported that genes can "jump," as pearls moving mysteriously from one necklace to another.(A) as pearls moving mysteriously from one necklace to another
(B) like pearls moving mysteriously from one necklace to another
(C) as pearls do that move mysteriously from one necklace to others
(D) like pearls do that move mysteriously from one necklace to others
(E) as do pearls that move mysteriously from one necklace to some other one
Choices C, D, and E are all faulty because the verb do suggests that the migrating pearls are presented as a real phenomenon, not as a figurative illustration.

看了以前的讨论，可还是不太明白这里的do怎么错了。请NN指教，谢谢