说说下题怎么做(ELAST-TEST3/24题)

说说下题怎么做(ELAST-TEST3/24题)：
The brains of identical twins are genetically identical. When only one of a pair of identical twins is a schizophrenic, certain areas of the affected twin's brain are smaller than corresponding areas in the brain of the unaffected twin. No such differences are found when neither twin is schizophrenic. Therefore, this discovery provides definitive evidence that schizophrenia is caused by damage to the physical structure of the brain.

If the statements on which the conclusion above is based are all true, each of the following could be true EXCEPT:

(A) People who lack a genetic susceptibility for the disease will not develop schizophrenia.
(B) Medications can control most of the symptoms of schizophrenia in most patients but will never be able to cure it.
(C) The brains of schizophrenics share many of the characteristics found in those of people without the disorder.
(D) It will eventually be possible to determine whether or not some one will develop schizophrenia on the basis of genetic information alone.
(E) Brain abnormalities associated with schizophrenia are the result of childhood viral infections that inhibit the development of brain cells.

我的分析：

A明显与文章说的相反，因为twins中一人得病另一人没得这种病，显然无genetic也生这种病，A说的是没这种genetic的人不会得这种病。为啥A不是答案？我就湖涂在这里，请高手指点！！！

B是可能，因为分裂症状可以用治精神病的药来抑制，但引起分裂症的原因--大脑的damage of structure可能永远也治不好。

C是可能。

答案是D，因为按照文章，光靠genetic是不得而知的，因为文中显然暗示这种病与genetic无关。

E是可能，因为viral infections可能引起大脑的damage of structure,从而导致分裂症。