Why does katie choose to address her audience directly in her conclusion when she says, "i want you to remember pi. but not just as the circle ratio, and not just as the biggest influence on math over history, but as a number that has greatly impacted people, and has had an influence on everything we do"?

Do you have a picture

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.