After the Tet Offensive, which famous media personality famously declared that "it is increasingly clear...that the only rational way out will be to negotiate, not as victors, but as an honorable people who lived up to their pledge to defend democracy and did the best they could"?

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.