Grass with sobole is

Options

A. Imperata cylindria
B. Saccharum spontaneum
C. Agropyron repens
D. All the above.

Answer

To determine which grass has a sobole, we need to understand what a sobole is and its significance in the grass family.

### Step-by-Step Solution:

1. **Understanding Sobole**:
- A sobole is a modified underground stem that functions as a runner. It helps in vegetative reproduction and can produce both roots and buds.

2. **Identifying Grass Family Members**:
- The sobole is a characteristic feature of the grass family (Poaceae). Therefore, any grass species that belongs to this family may have a sobole.

3. **Analyzing the Options**:
- **Option A: Imperata cylindrica** (also known as Rhizomatous grass)
- This species is indeed a member of the grass family and possesses a sobole.
- **Option B: Saccharum spontaneum**
- This species, commonly known as wild sugarcane, is also part of the grass family and has a sobole.
- **Option C: Agropyron repens** (also known as Elymus repens or couch grass)
- This species is another member of the grass family that contains a sobole.

4. **Conclusion**:
- Since all three options (Imperata cylindrica, Saccharum spontaneum, and Agropyron repens) belong to the grass family and possess a sobole, the correct answer is **"All of the above."**

### Final Answer:
The grass with sobole is **All of the above** (Imperata cylindrica, Saccharum spontaneum, Agropyron repens).