Assertion (A): Larynx of mammals helps in producing sound.
Reason (R): It contains vocal sacs.

Options

A. Both A and R are true and R is the correct explanation for A.
B. Both A and R are true but R is not the correct explanation for A.
C. A is true and R is false.
D. A is false and R is true.

Explanation

To solve the question regarding the assertion and reason provided, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Assertion (A)**:
- The assertion states that "Larynx of mammals helps in producing sound."
- This statement is true because the larynx, also known as the voice box, plays a crucial role in sound production in mammals.

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