35. The fact is that still we do not know why some people become addicts and others do not although there are many theoriesAthat reason that some people simply have an “addictive personality type”, being far more susceptible to the rewardmechanism that produces addiction while others still believe that it is the addicts’ lack of will power to refrain withouttaking drugs or alcohol.
(A) why some people become
(B)that reason
(C) susceptible to
(D) lack of
(E) without