Which of the following drugs are often abused ?
a.Barbiturates b. Amphetamines c.Benzodiazepines d.LSD

Options

A. a, b and c
B. b, c and d
C. a, c and d
D. a,b,c and d

Answer

To determine which of the following drugs are often abused, we need to analyze each option provided:

1. **Barbiturates**:
- Barbiturates are central nervous system depressants that are often prescribed for anxiety, insomnia, and seizure disorders. However, they have a high potential for abuse and addiction. People may misuse them for their sedative effects, leading to dependence and overdose.

2. **Amphetamines**:
- Amphetamines are stimulants that are commonly prescribed for attention deficit hyperactivity disorder (ADHD) and narcolepsy. They can increase alertness and energy levels, which makes them appealing for recreational use. Due to their potential for addiction and misuse, they are often abused.

3. **Benzodiazepines**:
- Benzodiazepines are another class of central nervous system depressants used to treat anxiety, insomnia, and other conditions. Similar to barbiturates, they can lead to dependence and are frequently abused for their calming effects.

4. **LSD (Lysergic Acid Diethylamide)**:
- LSD is a hallucinogenic drug that alters perception, mood, and cognitive processes. While it is illegal and can be abused, it is not typically associated with physical dependence in the same way as the other drugs listed. However, it can lead to psychological dependence.

Based on the analysis, the drugs that are often abused are:
- A. Barbiturates
- B. Amphetamines
- C. Benzodiazepines

Thus, the correct answer is **A, B, C**.