Assertion : At climax stage , perfect equilibrium between abiotic and biotic components area cannot be observed.
Reason: This is due to autogenic and allogenic succession.

Options

A. If both Assertion and Reason are true and Reason is correct explanation of Assertion.
B. If both Assertion and Reason is not correct explanation of Assertion.
C. If Assertion is true but Reason is false.
D. If both Assertion and Reason are false.

Answer

### Step-by-Step Solution:

1. **Understanding the Assertion**: The assertion states that at the climax stage, a perfect equilibrium between abiotic and biotic components cannot be observed. To analyze this, we need to understand what the climax stage of an ecosystem is. The climax community is the final stage of ecological succession, where the ecosystem reaches a stable state.

**Hint**: Consider what "climax community" means in ecological terms and how it relates to stability.

2. **Evaluating the Assertion**: In a climax community, while there is a balance between biotic (living organisms) and abiotic (non-living factors like temperature, water, etc.) components, it is not a static equilibrium. There are still fluctuations and interactions that prevent a perfect equilibrium from being maintained at all times.

**Hint**: Think about how ecosystems are dynamic and constantly changing, even in a climax state.

3. **Understanding the Reason**: The reason provided states that the lack of perfect equilibrium is due to autogenic and allogenic succession. Autogenic succession is driven by biotic factors, while allogenic succession is influenced by abiotic factors.

**Hint**: Reflect on how these types of succession contribute to changes in the ecosystem and whether they support or contradict the assertion.

4. **Evaluating the Reason**: The reason is incorrect in the context of the assertion. While both autogenic and allogenic successions influence ecosystems, they do not directly explain why a perfect equilibrium cannot be observed at the climax stage. The assertion itself is flawed because, in a climax community, there is a degree of equilibrium, albeit not perfect.

**Hint**: Consider how the dynamics of succession relate to the overall stability of an ecosystem.

5. **Conclusion**: Both the assertion and the reason are incorrect. The assertion misrepresents the nature of equilibrium in a climax community, and the reason fails to accurately explain the assertion.

**Hint**: Summarize your findings to clarify the relationship between the assertion and the reason.

### Final Answer:
Both assertion and reason are false.