A: true vocal cord are located above the false vocal cords and participate in sound production. B: false vocal cord are located above the true vocal cords do not participate in sound production.

Options

A. both [A] & [B] are correct
B. only [A] is correct
C. Only [B] is correct
D. both [A] & [B] are incorrect

Answer

To determine which statement is correct regarding the true and false vocal cords, we can analyze both statements step by step.

### Step 1: Analyze Statement A
- **Statement A** claims: "True vocal cords are located above the false vocal cords and participate in sound production."
- **Evaluation**: This statement is incorrect. In the human larynx, the true vocal cords (or vocal folds) are actually located below the false vocal cords (or vestibular folds). True vocal cords are responsible for sound production, while false vocal cords do not participate in this function.

### Step 2: Analyze Statement B
- **Statement B** claims: "False vocal cords are located above the true vocal cords and do not participate in sound production."
- **Evaluation**: This statement is correct. The false vocal cords are indeed situated above the true vocal cords and they do not play a role in sound production. Their primary function is to protect the airway and assist in the closure of the larynx during swallowing.

### Conclusion
- Based on the evaluations of both statements, Statement A is incorrect, while Statement B is correct. Therefore, the correct answer is that only Statement B is true.

### Final Answer
- **Only Statement B is correct.**