L.S.D. is derived from

Options

A. Fungus
B. Bacteria
C. Alcohol
D. 2, 4-D.

Answer

### Step-by-Step Solution:

1. **Understanding LSD**:
- LSD stands for Lysergic Acid Diethylamide. It is known for its hallucinogenic properties, meaning it can alter perception and cause hallucinations.

2. **Source of LSD**:
- LSD is derived from a specific group of fungi known as **Argot**. This group is not a single species but encompasses various fungi.

3. **Fungal Classification**:
- The fungi from which LSD is derived belong to the class **Eschomycetis**, commonly referred to as sac fungi. This class includes various members such as yeast and Penicillium.

4. **Genus of Interest**:
- Within the Eschomycetis class, there is a genus called **Flaviseps**, which contains fungi known as Argot. These fungi are crucial for the production of LSD.

5. **Chemical Isolation**:
- LSD is not obtained directly from these fungi. Instead, a chemical compound called **lysergic acid** is isolated from the Argot fungi.

6. **Synthesis of LSD**:
- After isolating lysergic acid, it undergoes a synthetic process to produce LSD (Lysergic Acid Diethylamide).

7. **Conclusion**:
- Therefore, the correct answer to the question "L.S.D. is derived from" is that it is derived from a fungus, specifically from the Argot group of fungi.