When analyzing population changes, the fertility rate reflects a.
the biological capacity to bear children.
c.
the actual number of births occurring to women of childbearing age.
b.
a drug treatment to help women conceive.
d.
a pull factor.

Iam not sure sorry

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.