Assertion (A): In Griffith's experiment, the dead R strain bacteria was capable of causing the transformation of the live S-strain bacteria.
Reason(R): The S-strain is non-virulent strain.

Options

A. Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A)
B. Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).
C. Assertion (A) is true but reason (R) is false.
D. Assertion (A) is false but reason (R) is true.

Explanation

To solve the question, we need to analyze the assertion and reason provided in the context of Griffith's experiment.

### Step-by-Step Solution:

1. **Understanding the Assertion (A)**:
- The assertion states: "In Griffith's experiment, the dead R strain bacteria was capable of causing the transformation of the live S-strain bacteria."
- In Griffith's experiment, the key observation was that when live R strain bacteria were exposed to heat-killed S strain bacteria, the live R strain bacteria transformed into virulent S strain bacteria. Therefore, the assertion is incorrect because it suggests that dead R strain bacteria caused transformation in live S strain bacteria, which is not what happened.

2. **Understanding the Reason (R)**:
- The reason states: "The S-strain is a non-virulent strain."
- In fact, the S-strain bacteria are virulent (they cause disease), while the R-strain bacteria are non-virulent (they do not cause disease). Therefore, this reason is also incorrect.

3. **Evaluating the Options**:
- Now that we have established that both the assertion and the reason are incorrect, we can evaluate the options provided:
- Option 1: Both are correct, assertion and reason, and reason is the correct explanation of assertion. (Incorrect)
- Option 2: Both are correct, but the reason is not explaining it correctly about assertion. (Incorrect)
- Option 3: Assertion is correct, but the reason is wrong. (Incorrect)
- Option 4: Assertion is wrong, but the reason given is correct. (Correct)

### Conclusion:
- The correct answer is **Option 4**: Assertion is wrong, but the reason given is correct.