Which part of $Papaver$ $somniferum$ yields opium?

Which one of the following is a stimulant?

Match List $I$ with List $II$.

List $I$	List $II$
$A$. Heroin	$I$. Effect on cardiovascular system
$B$. Marijuana	$II$. Slow down body function
$C$. Cocaine	$III$. Painkiller
$D$. Morphine	$IV$. Interfere with transport of dopamine

Choose the correct answer from the options given below:

Read the following statements:
$a.$ Heroin,commonly called smack,is obtained by acetylation of morphine.
$b.$ Cocaine is obtained from the latex of Papaver somniferum.
$c.$ Dopamine is an excitatory neurotransmitter.
$d.$ Morphine is an effective sedative and painkiller.
Mark the option which includes both correct statements.

Who is affected by the consumption of drugs during pregnancy?

Tobacco inhalation causes: