The four most common terrorist activities include gathering target intelligence, acquiring materials necessary for an attack, preparing materials, and:

The answer - c apex

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.

:what is edwards's purpose for giving this sermon? which elements likely make the argument effective for a puritan audience?