Plant part used as vegetable in Brassica oleracea var. botrytis is

Options

A. Terminal bud
B. Axillary bud
C. Unripe inflorescence
D. Fruit.

Answer

To determine the plant part used as a vegetable in Brassica oleracea var. botrytis, we will analyze the provided options step by step.

### Step-by-Step Solution:

1. **Understand the Plant**: Brassica oleracea var. botrytis is commonly known as cauliflower. It is important to identify which part of the plant is typically consumed as a vegetable.

2. **Evaluate the Options**:
- **Option 1: Terminal Bud**: The terminal bud is the growing tip of the plant. While it can be edible in some plants, in the case of Brassica oleracea var. botrytis, it is not the part that is consumed.
- **Option 2: Auxiliary Bud**: Auxiliary buds are found in the leaf axils and can develop into branches or flowers. These buds are usually woody and not consumed as vegetables.
- **Option 3: Unripe Inflorescence**: The inflorescence refers to a cluster of flowers. In cauliflower, the edible part is the immature flower cluster, which is known for its taste and nutritional value.
- **Option 4: Fruit**: The fruit of Brassica oleracea is not typically consumed as a vegetable. It may contain substances that are not palatable or healthy.

3. **Identify the Correct Answer**: After evaluating all options, the unripe inflorescence (Option 3) is the correct answer as it is the part of Brassica oleracea var. botrytis that is consumed as a vegetable.

### Final Answer:
The plant part used as a vegetable in Brassica oleracea var. botrytis is the **unripe inflorescence**.

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