Adult Culex and Anopheles can be distinguished with the help of

Options

A. mouth parts/colour
B. sitting posture
C. antennae/wings
D. feeding habits

Explanation

To distinguish between adult Culex and Anopheles mosquitoes, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Mosquitoes**: Understand that both Culex and Anopheles are types of mosquitoes that can transmit diseases.

2. **Observe the Sitting Posture**: The primary distinguishing feature between adult Culex and Anopheles mosquitoes is their sitting posture.

3. **Culex Mosquito Sitting Position**: When Culex mosquitoes are at rest, they tend to keep their bodies in a horizontal position.

4. **Anopheles Mosquito Sitting Position**: In contrast, Anopheles mosquitoes sit with their heads low and their rear ends elevated, especially when they are feeding.

5. **Conclusion**: Based on the differences in their sitting postures, we can conclude that the correct answer to the question is the sitting posture.

### Final Answer:
Adult Culex and Anopheles can be distinguished with the help of their **sitting posture**.

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