Narcotics are
(a) Amphetamine and caffeine
(b) Morphine and Heroine
(c) LSD and Cocaine
(d) Barbiturate and benzodiazepine

Options

A. Amphetamine and caffeine
B. Morphine and Heroine
C. LSD and Cocaine
D. Barbiturate and benzodiazepine

Answer

To solve the question "Narcotics are", we need to identify which of the given options includes substances that are classified as narcotics. Let's analyze each option step by step.

### Step 1: Understand the Definition of Narcotics
Narcotics are psychoactive compounds that have a numbing effect on the body. They are primarily classified as opiates and opioids, which are derived from the latex of the poppy plant.

### Step 2: Analyze Each Option
- **Option (a): Amphetamine and caffeine**
- **Analysis**: Both amphetamine and caffeine are central nervous system stimulants. They do not have a numbing effect and are not classified as narcotics.

- **Option (b): Morphine and heroin**
- **Analysis**: Morphine and heroin are both opioids derived from the opium poppy. They are well-known narcotics and have significant numbing effects. This option is likely correct.

- **Option (c): LSD and cocaine**
- **Analysis**: LSD (lysergic acid diethylamide) is a hallucinogen, not a narcotic. Cocaine is a stimulant. Neither of these substances fits the definition of narcotics.

- **Option (d): Barbiturate and benzodiazepine**
- **Analysis**: Barbiturates are sedatives, and benzodiazepines are anti-anxiety medications. While they have sedative effects, they are not classified as narcotics in the same way that opioids are.

### Step 3: Conclusion
Based on the analysis, the correct answer is **(b) Morphine and heroin**, as they are the only substances listed that are classified as narcotics.

### Final Answer
Narcotics are (b) Morphine and heroin.

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