The voices of men, women and children are different due to difference in length of

Options

A. larynx
B. lungs
C. vocal cords
D. wind pipe

Explanation

To solve the question regarding why the voices of men, women, and children are different, we need to analyze the factors that influence voice pitch.

### Step-by-Step Solution:

1. **Understanding Voice Pitch**:
- Voice pitch refers to how high or low a sound is. It is determined by the frequency of the sound waves produced when we speak or sing.

2. **Identifying the Factors**:
- The pitch of a voice is influenced by various anatomical structures, primarily the vocal cords. The length and thickness of these vocal cords play a crucial role in determining the frequency of the sound produced.

3. **Comparing Vocal Cords**:
- Generally, men have longer and thicker vocal cords compared to women and children. This results in a lower frequency of vibration, leading to a deeper voice.
- Women typically have shorter and thinner vocal cords than men, resulting in a higher frequency and a higher pitch.
- Children have even shorter vocal cords, which leads to an even higher pitch than that of women.

4. **Conclusion**:
- The differences in voice pitch among men, women, and children can be attributed to the differences in the length and thickness of their vocal cords. Therefore, the correct answer to the question is **option 3: vocal cords**.

### Final Answer:
The voices of men, women, and children are different due to differences in the length of **vocal cords**.

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