Which of the following best defines inflation?
a. the rapid increase in the price of a specific good, such as gasoline
b. a general, sustained upward movement of prices for goods and services in an economy
c. the fluctuation in revenue and expenditures caused by congress and the president
d. an increase in the national debt caused by ongoing deficit spending

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.