Mustard oil or Colza is got from

Options

A. Brassica oleracea
B. Brassica nigra
C. Brassica juncea
D. Brassica rapa

Answer

To determine from which plant mustard oil or colza is obtained, we can analyze the given options step by step.

### Step-by-Step Solution:

1. **Identify the Options**: The options provided are:
- Option 1: Brassica oleraceae
- Option 2: Brassica nigra
- Option 3: Brassica juncea
- Option 4: Brassica rapa

2. **Evaluate Option 1 - Brassica oleraceae**:
- This plant is known as wild cabbage. Mustard oil is not derived from wild cabbage.
- **Conclusion**: This option is incorrect.

3. **Evaluate Option 2 - Brassica nigra**:
- This plant is known as black mustard. While black mustard is used as a spice, it is not the source of mustard oil.
- **Conclusion**: This option is incorrect.

4. **Evaluate Option 3 - Brassica juncea**:
- This plant is known as leaf mustard or Sarso. Although it is related to mustard, it is not the primary source of mustard oil.
- **Conclusion**: This option is incorrect.

5. **Evaluate Option 4 - Brassica rapa**:
- This plant is known for its mustard seeds, which are the source of mustard oil. Mustard oil is also referred to as colza oil or canola oil, derived from the seeds of this plant.
- **Conclusion**: This option is correct.

6. **Final Answer**: The correct answer to the question is **Option 4: Brassica rapa**.