Assertion` :-` Progressive degeneration of skeletal muscle mostly due to genetic disorder, is muscular dystrophy.
Reason `:-` Rapid spasms in muscle due to low `Ca^(2+)` in body fluid, is tetany.
(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.

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

To solve the question, we need to analyze the assertion and reason provided.

### Step 1: Analyze the Assertion
The assertion states that "Progressive degeneration of skeletal muscle mostly due to genetic disorder is muscular dystrophy."
- This statement is **True**. Muscular dystrophy is indeed a genetic disorder characterized by progressive degeneration of skeletal muscles.

### Step 2: Analyze the Reason
The reason states that "Rapid spasms in muscle due to low Ca²⁺ in body fluid is tetany."
- This statement is also **True**. Tetany is a condition characterized by muscle spasms that can occur due to low levels of calcium (hypocalcemia) in the body.

### Step 3: Determine the Relationship
Now we need to determine if the reason correctly explains the assertion.
- The assertion and reason describe two different conditions: muscular dystrophy (a genetic disorder) and tetany (a condition caused by low calcium levels). They are not directly related to each other.

### Conclusion
Since both the assertion and reason are true, but the reason does not explain the assertion, the correct answer is:
**(b) If both Assertion & Reason are True but Reason is not a correct explanation of the Assertion.**

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