14. The commission has directed advertisers to restrict the use of the word "natural" to foods that do not contain color or flavor additives(X), chemical preserva­tives(Y), or nothing that has been synthesized(Z).
    

         (A)          or nothing that has been

(B)         or that has been

(C)         and nothing that is

(D)         or anything that has been

(E)         and anything

Idiom + logical predication
      
   

The use of do not and nothing in the same sentence creates a double negative and reverses the intended meaning. Anything should be used instead of nothing. Logically, a "natural" food cannot contain any prohibited ingredient, so the list of prohibited ingredients must be connected by or.

D  Correct. This sentence correctly avoids a double negative and uses parallel elements.  

E  And distorts the meaning of the sentence.

 答案是D，但我认为E更确切，按原文理解，含任一禁止成分的food就不能算是natural food，也就是说只有不含所有禁止成分的food才能算是natural food，这样的话答案就应该是E，natural food do not contain X, Y, and Z。如果D对，那我要问了，如果该食物不含color or flavor additives，但是含chemical preserva­tives，是不是也不能算是natural food呢？
     

看了以往所有的讨论贴，无奈自己就是绕不过来，可能逻辑有问题  请大家指教。

看了以往所有的讨论贴，无奈自己就是绕不过来，可能逻辑有问题  请大家指教。