GWD 6-28 & 6-31请教~

28. Many of the earliest known images of Hindu deities in India date from the time of the Kushan empire, fashioned either from the spotted sandstone of Mathura or Gandharan grey schist.

A. empire, fashioned either from the spotted sandstone of Mathura or
B. empire, fashioned from either the spotted sandstone of Mathura or from
C. empire, either fashioned from the spotted sandstone of Mathura or
D. empire and either fashioned from the spotted sandstone of Mathura or from
E. empire and were fashioned either from the spotted sandstone of Mathura or from

答案是A，可是根据对称原则应该是E才对。是不是答案有问题啊？谢谢！

31. At an orientation meeting, the travelers were told that a visa, a landing card, and evidence of inoculation against typhoid fever would be needed by each of them.
A. a visa, a landing card, and evidence of inoculation against typhoid fever would be needed by each of them
B. they would need a visa, a landing visa, and evidence of their being inoculated against typhoid fever
C. they would need evidence of being inoculated against typhoid fever and a visa and landing card
D. they would each need a visa, a landing card, and evidence of inoculation against typhoid fever
E. they would need visas, landing cards, and evidence of inoculation against typhoid fever for each of them.

答案是D，可是这里的each放在了"they would"的后面？有这种用法？谢谢！

不是吧 我的答案28说选E哦~我自己选了A~ 究竟是选什么啊  不过第31题我也错了~不懂为什么选那个

这道题再问一下，GWD6-28如果选过去分词作定语的话，逻辑主语应该是什么呀

谢谢