Which one is an example of a biennial and monocarpic plant ?

Options

A. Wheat
B. Agave
C. Sugarbeet
D. Banana

Answer

To solve the question of identifying an example of a biennial and monocarpic plant, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Definitions**:
- **Biennial Plants**: These are plants that take two years to complete their life cycle. In the first year, they typically grow vegetatively, and in the second year, they flower, produce seeds, and then die.
- **Monocarpic Plants**: These are plants that flower and set seeds only once in their lifetime, after which they die.

2. **Identify Examples**:
- We need to look for a plant that fits both categories: it must be biennial and monocarpic.
- Common examples of biennial plants include carrots, parsley, and sugar beet.

3. **Evaluate the Options**:
- Among the examples, sugar beet stands out as it is a biennial plant that flowers in its second year and produces seeds, after which it dies. This aligns with the definition of monocarpic plants.

4. **Conclusion**:
- Based on the definitions and examples evaluated, the correct answer to the question is **sugar beet**.

### Final Answer:
The example of a biennial and monocarpic plant is **sugar beet**.