Heroin is obtained from a plant of the family:

What is the effect of nicotine on the human body?

Cocaine is commonly called as $:-$

Opium is a derivative of which of the following?

The main alkaloid of $Papaver$ $somniferum$ is ....

Read the following statements:
Statement $I$: Morphine is obtained by acetylation of Heroin.
Statement $II$: Cannabinoids are known for their effect on the cardiovascular system.
Which of the following options is correct with reference to these statements?