下面是无忧教育为您精心提供的SAT语法练习题（3），从21题到30题，为不定项选择题，答案及解析在第二页，请独立完成后再参看答案。
21. Defense attorneys have occasionally argued that their clients' misconduct stemmed from a reaction tosomething ingested, but in attributing criminal or delinquent behavior to some food allergy, the perpetrators
are in effect told that they are not responsible for their actions.
(A) in attributing criminal or delinquent behavior to some food allergy
(B) if criminal or delinquent behavior is attributed to an allergy to some food
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(C) in attributing behavior that is criminal or delinquent to an allergy to some food
(D) if some food allergy is attributed as the cause of criminal or delinquent behavior
(E) in attributing a food allergy as the cause of criminal or delinquent behavior
