Two to six exarch radial vascular bundles and little pith are found in

Options

A. dicot stem
B. monocots root
C. dicot root
D. dicot leaf

Answer

To determine where two to six exarch radial vascular bundles and little pith are found, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Terms**:
- **Exarch**: This refers to the arrangement of xylem in which the protoxylem is located towards the outer side (circumference) and the metaxylem is located towards the inner side (center).
- **Radial Vascular Bundles**: In this type of vascular bundle, xylem and phloem are arranged alternately along different radii.

2. **Identify the Types of Vascular Bundles**:
- There are four main types of vascular bundles: collateral, bicollateral, concentric, and radial. The radial arrangement is significant in roots.

3. **Analyze the Options**:
- **Dicot Stem**: Typically has collateral vascular bundles; thus, this option is incorrect.
- **Monocot Root**: Generally has well-developed pith, which does not match the description of "little pith."
- **Dicot Root**: Usually has exarch radial vascular bundles and often has little or no pith.
- **Dicot Leaf**: Typically has collateral vascular bundles; thus, this option is also incorrect.

4. **Conclusion**:
- Based on the definitions and characteristics of the vascular bundles, the correct answer is **Dicot Root**. This is because dicot roots have exarch radial vascular bundles and generally exhibit little or no pith.

### Final Answer:
**Dicot Root**