Mark is doing his internship at a community counseling agency. He recently began seeing Rob a 26 years old graduate student who wants to get his drinking under control because of a recent DUI. In one of the sessions, Rob discloses that he has been having sexual relations with his 9 year old brother, but he claims that this act is consensual. What should Mark do in this situation:

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Ifound the exercise on the internet. attached is the list mentioned above.in order for a compound to be considered optically active it can't have any axis or plan of symmetry. the molecule  shouldn't also  be superimposable on its mirror image.with such considerations, the compounds that are optically active are: -third compound on the first image is optically active; -second and third compound from the second image are optically actives.