Assertion : Calcified cartilage is formed by the calcification of hyaline cartilage.
Reason : Calcified cartilage is the strongest cartiage.

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 "Calcified cartilage is formed by the calcification of hyaline cartilage." This is a true statement. Calcified cartilage does indeed arise from the calcification process of hyaline cartilage, which occurs in certain conditions, such as in the pubis of older frogs and at the ends of long bones in humans.

2. **Understanding the Reason**: The reason provided is "Calcified cartilage is the strongest cartilage." This statement is false. While calcified cartilage is hard due to calcium deposition, it is not the strongest type of cartilage. The strongest cartilage is fibrocartilage, which is known for its tensile strength and is found in areas such as intervertebral discs and the pubic symphysis.

3. **Evaluating the Relationship**: Since the assertion is true and the reason is false, we need to determine the correct option based on the provided choices. The options indicate that we are looking for a scenario where the assertion is true but the reason is false.

4. **Conclusion**: The correct conclusion is that the assertion is true, but the reason is false. Therefore, the correct answer is: "Assertion is true but the reason is false."