Bright colour of petals is due to the presence of

Options

A. chloroplast
B. anothocyanin
C. elaioplast
D. amyloplast.

Explanation

To answer the question "Bright color of petals is due to the presence of," we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Options**: The question provides several options related to pigments found in plants. The options include chloroplast, anthocyanin, teleoplast, and amyloplast.

2. **Analyze Chloroplast**: Chloroplasts are organelles that contain chlorophyll, the pigment responsible for the green color in leaves. Since the question specifically asks about the bright colors of petals, chloroplasts are not the correct answer.

3. **Examine Anthocyanin**: Anthocyanin is a pigment found in the vacuoles of petals and is responsible for a range of colors including purple, red, blue, and black. This pigment is directly associated with the bright colors of many flowers.

4. **Consider Teleoplast**: Teleoplast is a type of leukoplast, which is a colorless organelle. Since it does not contribute any color, it cannot be the answer.

5. **Look at Amyloplast**: Amyloplast is another type of leukoplast that stores starch and is also colorless. Therefore, it does not contribute to the color of petals.

6. **Conclusion**: After analyzing all the options, we find that the only pigment that contributes to the bright colors of petals is anthocyanin. Thus, the correct answer is anthocyanin.

### Final Answer:
The bright color of petals is due to the presence of **anthocyanin**.

---