Assertion : Terminal oxidation occurs both in aerobic and anaerobic conditions.
Reason : Terminal oxidation occurs at the terminal step of respiration.

Options

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

Explanation

### Step-by-Step Solution:

1. **Understanding the Assertion**: The assertion states that "Terminal oxidation occurs both in aerobic and anaerobic conditions." To evaluate this, we need to understand what terminal oxidation entails. Terminal oxidation refers to the final step of cellular respiration where electrons are transferred to oxygen (in aerobic conditions) or to other molecules (in anaerobic conditions).

2. **Evaluating the Assertion**: In aerobic respiration, terminal oxidation indeed occurs as electrons from NADH and FADH2 are transferred to oxygen, forming water. However, in anaerobic respiration, terminal oxidation does not occur in the same way because oxygen is not present. Instead, other molecules like pyruvate, acetaldehyde, or other organic molecules serve as electron acceptors. Therefore, the assertion is **incorrect**.

3. **Understanding the Reason**: The reason states that "Terminal oxidation occurs at the terminal step of respiration." This is a factual statement. Terminal oxidation is indeed the final step of respiration, where the electrons are finally accepted, resulting in the formation of water and ATP.

4. **Evaluating the Reason**: Since terminal oxidation is the last step in the electron transport chain and is crucial for ATP production, the reason is **correct**.

5. **Conclusion**: Since the assertion is incorrect and the reason is correct, the overall statement is false. The correct answer to the question is that the assertion is false, but the reason is true.

### Final Answer:
- The assertion is incorrect, and the reason is correct.