Which is the particular type of drug that is obtained from the plant whose one flowering branch is shown here?

Haemoglobin is having maximum affinity with

Assertion : Cocaine has a potent stimulating action on central nervous system, producing a sense of euphoria and increased energy.

Reason : Injecting the microbes intentionally during immunisation or infectious organisms gaining access into body during natural infection induces active immunity.

Cancer can be caused by the use of

In your view what motivates youngsters to take to alcohol or drugs and how can this be avoided?