In dicot stem, vascular bundles are

Options

A. numerous scattered
B. arranged in a ring
C. without cambium
D. surrounded by bundle sheath

Answer

### Step-by-Step Solution:

1. **Understanding Vascular Bundles**: In plants, vascular bundles are the structures that contain xylem and phloem, which are responsible for the transport of water, nutrients, and food.

2. **Identifying Dicot Characteristics**: Dicot stems have specific characteristics that differentiate them from monocot stems. One of the key features is the arrangement of vascular bundles.

3. **Analyzing the Options**:
- **Option 1: Numerus scattered**: This arrangement is typical of monocots, not dicots. Therefore, this option is incorrect.
- **Option 2: Arranged in a ring**: In dicot stems, vascular bundles are indeed arranged in a ring formation. This is a defining characteristic of dicots, making this option correct.
- **Option 3: Without cambium**: Dicot stems contain cambium, which is responsible for secondary growth. This option is incorrect as it describes monocots.
- **Option 4: Surrounded by bundle sheath**: This feature is more common in monocot leaves, not in dicot stems. Hence, this option is also incorrect.

4. **Conclusion**: Based on the analysis of the options, the correct answer is that in dicot stems, vascular bundles are **arranged in a ring**.