Tetrarch bundles occcur in

Options

A. Leaf of Cicer arietinum
B. Leaf of Pisum sativum
C. Root of Cicer arietinum
D. Root of Zea mays

Answer

### Step-by-Step Solution:

1. **Understanding Tetrarch Bundles**:
- Tetrarch bundles refer to a vascular arrangement where there are four vascular bundles present in a plant structure. This condition is primarily seen in the roots of certain dicotyledonous plants.

2. **Identifying the Options**:
- The options provided are:
- Leaf of *Cicer arietinum*
- Leaf of *Pisum sativum* (commonly known as pea)
- Root of *Cicer arietinum*
- Root of *Zea mays* (commonly known as maize)

3. **Analyzing Each Option**:
- **Leaf of *Cicer arietinum***: Leaves typically do not exhibit tetrarch bundles.
- **Leaf of *Pisum sativum***: Similar to the previous option, leaves do not display tetrarch bundles.
- **Root of *Cicer arietinum***: This is a dicot plant, and tetrarch bundles are known to occur in the roots of dicots.
- **Root of *Zea mays***: Maize is a monocot, which typically does not exhibit tetrarch bundles.

4. **Conclusion**:
- The correct answer is the **root of *Cicer arietinum***, as it is the only option where tetrarch bundles are present.

### Final Answer:
Tetrarch bundles occur in the **root of *Cicer arietinum***.

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