Radish and carrot are

Options

A. Annuals
B. Biennial
C. Perennial
D. Biennial in colder areas and annuals in warmer areas

Explanation

**Step-by-Step Solution:**

1. **Understanding Plant Life Cycles**:
- Begin by defining the terms related to plant life cycles: annual, biennial, and perennial.
- Annual plants complete their life cycle in one year, while biennial plants take two years to complete their life cycle. Perennial plants live for more than two years.

2. **Characteristics of Annual Plants**:
- Annual plants grow from seeds, mature, flower, and produce seeds within a single year. After completing this cycle, they die.

3. **Characteristics of Biennial Plants**:
- Biennial plants have a two-year life cycle. In the first year, they focus on vegetative growth, and in the second year, they flower, produce seeds, and then die.

4. **Identifying Radish and Carrot**:
- Radishes and carrots are examples of biennial plants. They grow for one year, and in the second year, they flower and set seeds.

5. **Monocarpic Nature**:
- Both radishes and carrots are also classified as monocarpic plants, meaning they flower only once in their lifetime. After flowering and producing seeds, they die.

6. **Conclusion**:
- Based on the definitions and characteristics discussed, radishes and carrots are classified as biennial plants.

**Final Answer**: Radish and carrot are biennial plants.

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