Talya, a girl from a wealthy family, is seen constantly mocking her not-so-fortunate classmates. her class teacher believes that talya derives her condescending tone from her parents, who display similar behavior toward poorer families. the class teacher is making a

The class teacher is making an assumption.

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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.