In human beings, sound is produced due to the ________ .

Options

A. vibration of inhaled air when it passes through the vocal cords
B. vibration of vocal cords in the larynx when air passes through them
C. vibration of lungs when air is pushed out of them, through the larynx
D. air form the lungs passing through the narrow slit between

Answer

**Step-by-Step Solution:**

1. **Identify the Organ Responsible for Sound Production**: In human beings, sound is produced primarily by an organ known as the larynx, commonly referred to as the voice box.

2. **Understand the Structure of the Larynx**: The larynx contains two thin membranes known as vocal cords. These cords play a crucial role in the production of sound.

3. **Process of Sound Production**: When we exhale, air from the lungs is pushed through the larynx. As this air passes through the space between the vocal cords, it causes them to vibrate.

4. **Vibration Leads to Sound**: The vibrations of the vocal cords create sound waves in the air. These sound waves travel through the air and are perceived as sound.

5. **Conclusion**: Therefore, the correct answer to the question is that sound in human beings is produced due to the vibration of vocal cords in the larynx when air passes through them.

**Final Answer**: In human beings, sound is produced due to the vibration of vocal cords in the larynx when air passes through them.

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