Jeffrey quit smoking one year ago. he has not relapse at all and feels confident in his behaviors change, although it is still a struggle to be around friends and family who are smoking. according to the stages of change model, which stage is jeffrey currently in?

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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.