PT 60 S3 Q13

   Psychologist: Identical twins are virtually the samegenetically. ... ...

Which one of the following, if true, would most weaken the psychologist's argument?
(A) Many people, including identical twins, undergo radical changes in their lifestyles at some point in their lives.
(B) ...
(C) ...
(D) ...
(E) ...

*This question is included in Complete Section: LR-B, June '10 LSAT (PT 60 Sec. 3)