In a dicot root

Options

A. 1)The vascular bundles are scattered and lack cambium
B. 2)The vascular bundles are usually arranged in a ring and have cambium
C. 3)Xylem and Phloem show radial arrangement
D. 4)Xylem is always endarch

Answer

### Step-by-Step Solution:

1. **Understanding Dicot Roots**:
- Dicot roots exhibit a specific arrangement of vascular bundles. They are characterized by having vascular bundles that are arranged in a radial pattern.

2. **Identifying Vascular Bundles**:
- In dicot roots, the vascular bundles consist of xylem and phloem. The arrangement is such that xylem and phloem are found in alternating positions.

3. **Analyzing the Options**:
- **Option 1**: "The vascular bundles are scattered and lack cambium."
- This is incorrect for dicot roots. Scattered vascular bundles are typical of monocots.
- **Option 2**: "Vascular bundles are usually arranged in a ring and have cambium."
- This is also incorrect for dicot roots. While dicot stems have vascular bundles arranged in a ring, dicot roots do not.
- **Option 3**: "Xylem and phloem show radial arrangement."
- This is correct. In dicot roots, the vascular bundles are arranged radially with xylem and phloem alternating.
- **Option 4**: "Xylem is always in dart."
- This is incorrect because in dicot roots, xylem is described as "xarc," meaning it has a specific arrangement that is not referred to as "dart."

4. **Conclusion**:
- The correct answer is **Option 3**: "Xylem and phloem show radial arrangement."