Why is representative money more useful than commodity money?
a. representative money can be used for other things besides currency.
b. representative money has value because the government says it does.
c. representative money exists in unlimited supply, so more people use it.
d. representative money is portable, durable, divisible, and acceptable.

D. Representative money is portable, durable, divisible, and acceptable.

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.