Which of the following have been artificially selected?

Options

A. Cabbage
B. Cauliflower
C. Broccoli
D. All of these

Answer

To determine which of the given options have been artificially selected, we need to understand the concept of artificial selection in agriculture. Here’s a step-by-step solution:

### Step-by-Step Solution:

1. **Understand Artificial Selection**: Artificial selection is the process by which humans breed plants and animals for particular traits. This involves selecting specific individuals with desirable characteristics to produce the next generation.

2. **Analyze the Options**: The options given include cabbage, cauliflower, and broccoli. We need to evaluate each of these crops to see if they have been artificially selected.

3. **Cabbage**: Cabbage is a leafy green vegetable that has been cultivated for thousands of years. It is a result of artificial selection from wild mustard plants.

4. **Cauliflower**: Cauliflower is another vegetable that has been developed through artificial selection. It is derived from the same wild mustard plant and has been selectively bred for its flower buds.

5. **Broccoli**: Broccoli, like cabbage and cauliflower, is also a product of artificial selection. It has been bred from the wild mustard plant to enhance its flower clusters.

6. **Conclusion**: Since all three options (cabbage, cauliflower, and broccoli) have been artificially selected from the wild mustard plant through selective breeding, the correct answer is that all of these have been artificially selected.

7. **Final Answer**: The correct answer is option number 4: All of these.