Smack' is a drug obtained from the

Options

A. latex of Papaver somniferum
B. leaves of Cannabis sativa
C. flowers of Dhatura pinata
D. fruits of Erythroxyl coca

Explanation

**Step-by-Step Solution:**

1. **Identify the Drug:** The question asks about 'smack,' which is a colloquial term for heroin.

2. **Chemical Composition:** Heroin is chemically known as diacetylmorphine.

3. **Source of the Drug:** Heroin is derived from the latex of the poppy plant.

4. **Scientific Name of the Plant:** The scientific name of the poppy plant from which heroin is obtained is Papaver somniferum.

5. **Effects of the Drug:** Heroin acts as a depressant, meaning it slows down the activity of the central nervous system and affects the gastrointestinal tract.

6. **Conclusion:** Therefore, 'smack' is a drug obtained from the latex of the poppy plant, specifically from Papaver somniferum.

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