Which statement best describes a way that industrialization changed life in the United States during the nineteenth century? A large percentage of jobs required college degrees. A large pool of unskilled laborers developed. Most married women were stay-at-home wives and moms. Most young children who lived in cities graduated from high school.

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.