Assertion. A morphology based approach to taxonomy is called alpha taxonomy and it is old fashioned.
Reason. A multidisciplinary approach to taxonomy called omega taxonomy is favoured in recent years as it excludes morphological features.

Options

A. If both Assertion and Reason are true and Reason is 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 and false.

Answer

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

### Step-by-Step Solution:

1. **Understanding the Assertion**:
- The assertion states that "A morphology-based approach to taxonomy is called alpha taxonomy and it is old-fashioned."
- This is correct. Alpha taxonomy primarily focuses on the morphological characteristics of organisms to classify them. It is considered old-fashioned because modern taxonomy often incorporates additional data beyond morphology.

**Hint**: Remember that alpha taxonomy relies heavily on physical traits for classification.

2. **Understanding the Reason**:
- The reason states that "A multidisciplinary approach to taxonomy called omega taxonomy is favored in recent years as it excludes morphological features."
- This statement is incorrect. Omega taxonomy does not exclude morphological features; rather, it encompasses a wide range of data, including morphology, genetics, and ecological information.

**Hint**: Omega taxonomy is more inclusive, not exclusive, of morphological data.

3. **Conclusion**:
- Since the assertion is true and the reason is false, we conclude that the correct option is that the assertion is true but the reason is false.

**Hint**: Always check if the reason accurately supports the assertion.

### Final Answer:
The correct option is that the assertion is true, but the reason is false.