Assertion : The enlarged Q and R waves indicate myocardial infarction
Reason : Any deviation in the normal recording of ECG indicates possible abnormality or disease.

Options

A. If both assertion and reason are true and reason is the correct explanation of assertion
B. If both assertion and reason are true but reason is not the correct explanation of assertion
C. If assertion is true but reason is false
D. If both assertion and reason are false

Explanation

To solve the assertion-reason question regarding the enlarged Q and R waves indicating myocardial infarction and the deviation in ECG recording indicating possible abnormalities, we can break down the solution into the following steps:

### Step-by-Step Solution:

1. **Understanding the Assertion**:
- The assertion states that "the enlarged Q and R waves indicate myocardial infarction."
- Myocardial infarction, commonly known as a heart attack, occurs when blood flow to a part of the heart is reduced or stopped, causing damage to the heart muscle.

**Hint**: Recall the significance of Q and R waves in the ECG and their relation to heart health.

2. **Understanding the Reason**:
- The reason states that "any deviation in the normal recording of ECG indicates possible abnormality or disease."
- An ECG (electrocardiogram) records the electrical activity of the heart and any deviations from the normal waveform can indicate various cardiac conditions.

**Hint**: Think about how ECG readings are interpreted and what deviations might signify.

3. **Analyzing the Relationship**:
- Both the assertion and reason are true statements. Enlarged Q and R waves are indeed indicative of myocardial infarction, and deviations in ECG readings generally suggest abnormalities or diseases.
- However, the reason does not specifically explain why enlarged Q and R waves indicate myocardial infarction. It merely states that deviations indicate abnormalities, without linking it directly to the assertion.

**Hint**: Consider whether the reason provides a direct explanation for the assertion or if it is more general.

4. **Conclusion**:
- Since both statements are true, but the reason does not adequately explain the assertion, the correct conclusion is that both the assertion and reason are true, but the reason is not the correct explanation of the assertion.

**Hint**: Reflect on the criteria for determining if a reason supports an assertion in scientific explanations.

### Final Answer:
Both the assertion and reason are true, but the reason is not the correct explanation of the assertion.