Harish went with his mother to the market and bought carrots, tomatoes, radish and potato from a vegetable vendor. Which of these vegetables represent homologous structures?

Options

A. Carrot and potato
B. Potato and radish
C. Radish and carrot
D. Tomato and potato

Explanation

To determine which vegetables represent homologous structures among carrots, tomatoes, radishes, and potatoes, we need to understand the concept of homology in biological terms.

### Step-by-Step Solution:

1. **Understanding Homologous Structures**:
- Homologous structures are body parts that share a common ancestry, even if they serve different functions in the present-day organisms.

2. **Identifying the Vegetables**:
- The vegetables in question are carrots, tomatoes, radishes, and potatoes. We need to analyze their structures and origins.

3. **Analyzing Carrots and Radishes**:
- Both carrots and radishes are root vegetables. They share a similar structure as they both develop from the root of the plant and serve the function of storage for nutrients.

4. **Comparing Other Vegetables**:
- Potatoes are also tubers, which are modified stems, while tomatoes are fruits. These do not share the same structural origin as carrots and radishes.

5. **Conclusion**:
- Since carrots and radishes both originate from the root system of their respective plants and have a similar structure, they represent homologous structures.

### Final Answer:
The vegetables that represent homologous structures are **radish and carrot**.

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