Identify the correctly matched pair from the following:

With the help of an example,explain how do tranquilizers control the feeling of depression?

Identify opiates from the following:
$A$. Codeine,$B$. Thymine,$C$. Epinephrine,$D$. Morphine,$E$. Thiamine,$F$. Heroin

Correct statements with respect to morphine $(X)$ and Veronal $(Y)$ are:
$A$. Both $X$ and $Y$ are sleep-producing agents.
$B$. $X$ is hypnotic and $Y$ is analgesic.
$C$. $X$ is analgesic and $Y$ is hypnotic.
$D$. $X$ is non-narcotic analgesic and $Y$ is antidepressant.

Explain Antifertility Drugs.

The given compound is used as: