The skeletal structure of a molecule of a drug and image of its source are given below. Identify them by selecting the correct option:
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A. A - Morphine, B - Leaves of Thea sinensis
B. A - Heroine molecule, B - Lesves of Papaver sonmiferum
C. A - Cannabinoid molecule, B - Leaves of Cannabis sativa
D. A - Cocaine molecule, B - Leaves of Atropa belladonna
