| Column I (Drug) | Column II (Source) | Column III (Fact) |
|---|---|---|
| A. Opioids | M. Opium poppy | I. Receptors are present in CNS and GI tract. |
| B. Cannabinoids | N. Cannabis sativa | II. Abused by sports persons |
| C. Cocaine | O. South American Plant | III. Crack |
| D. Heroin | P. Diacetyl morphine | IV. Smack |

Study the chemical structure of an addictive drug shown below and answer the questions that follow.