A. The plant was introduced in India because of its beautiful flowers and shape of leaves
B. It can propagate vegetatively at a phenomenal rate and spread all over water body in a short period
C. It is very difficult to get rid off these plants A to C points are related to -

Options

A. Dahlia
B. Water hyacinth
C. Azolla (water fern)
D. Mosses

Answer

To solve the question, we need to analyze the statements A, B, and C and identify which plant they are referring to.

### Step-by-Step Solution:

1. **Identify the Characteristics in Statement A**:
- The plant was introduced in India due to its beautiful flowers and the shape of its leaves.
- This suggests that the plant is ornamental in nature.

2. **Analyze Statement B**:
- The plant can propagate vegetatively at a phenomenal rate and spread all over a water body in a short period.
- This indicates that the plant has a high growth rate and can quickly cover large areas, especially in aquatic environments.

3. **Evaluate Statement C**:
- It is very difficult to get rid of these plants.
- This implies that the plant is invasive and poses challenges for control and management in its environment.

4. **Consider Possible Plants**:
- The options given are Dahlia, water hyacinth, azolla, and mosses.
- Dahlia is primarily a terrestrial ornamental plant and does not fit the aquatic growth and invasive characteristics.
- Azolla and mosses are also not known for rapid vegetative propagation in water bodies.
- Water hyacinth, on the other hand, is known for its beautiful flowers, rapid growth, and invasive nature, often referred to as the "Terror of Bengal" due to its detrimental effects on aquatic ecosystems.

5. **Conclusion**:
- Based on the analysis, the points A to C are related to **Water Hyacinth**.

### Final Answer:
The points A to C are related to **Water Hyacinth**.

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