Ergot is obtained from

Options

A. Agaricus
B. Claviceps
C. Commiphora
D. Ephedra.

Answer

To answer the question "Ergot is obtained from," we need to analyze the options provided and identify the correct source of Ergot.

### Step-by-Step Solution:

1. **Understanding Ergot**:
- Ergot is a type of fungus that primarily infects cereal grains, particularly rye. It is known for producing alkaloids that have medicinal properties.

2. **Reviewing the Options**:
- a. Agaricus: This is a genus of mushrooms, commonly known as the common mushroom or button mushroom. It is not related to Ergot.
- b. Claviceps: This is a genus of fungi, and specifically, Claviceps purpurea is known for producing Ergot.
- c. Commiphora: This is a genus of flowering plants, commonly known for producing myrrh. It is not related to Ergot.
- d. Ephedra: This is a genus of plants known for their stimulant properties, but it is not related to Ergot.

3. **Identifying the Correct Answer**:
- Since Claviceps purpurea is the fungus that produces Ergot, the correct answer is option **b. Claviceps**.

### Final Answer:
Ergot is obtained from **b. Claviceps**.