Assertion`: -` Maximum degree of mobility can be seen with a ball & socket synovial joint
Reason `:-` A ball can rotate in a hollow spherical socket on infinite axises.

Options

A. If both Assertion & Reason are True & the Reason is a correct explanation of the Assertion .
B. If both Assertion & Reason are True but Reason is not a correct explanation of the Assertion
C. If Assertion is True but the Reason is False.
D. If both Assertion & Reason are false.

Answer

### Step-by-Step Solution:

1. **Understanding the Assertion**: The assertion states that the maximum degree of mobility can be seen with a ball and socket synovial joint.
- **Explanation**: Ball and socket joints, such as the shoulder and hip joints, allow for a wide range of movement in multiple directions, making them the most mobile type of joint in the human body.

2. **Evaluating the Reason**: The reason provided is that a ball can rotate in a hollow spherical socket on infinite axes.
- **Explanation**: This describes the anatomical structure of a ball and socket joint, where the spherical head (the ball) fits into a cup-like socket, allowing for rotational movement around various axes.

3. **Determining the Truth of the Statements**:
- Both the assertion and the reason are true. The ball and socket joint indeed allows for maximum mobility, and the reason accurately describes how this mobility is achieved.

4. **Assessing the Relationship**: We need to check if the reason is a correct explanation of the assertion.
- The reason explains why the assertion is true: the structure of the ball and socket joint allows for movement in multiple directions, which is why it has the maximum degree of mobility.

5. **Conclusion**: Since both the assertion and reason are true, and the reason correctly explains the assertion, the correct answer is that both the assertion and reason are true, and the reason is the correct explanation of the assertion.

### Final Answer:
Both assertion and reason are true, and the reason is the correct explanation of the assertion.

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