Assertion : Plants manufacture food only during the day time.
Reason : During day time, metabolism is high.

Options

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

Answer

To analyze the assertion and reason provided in the question, we can break down the problem into clear steps:

### Step-by-Step Solution:

1. **Understanding the Assertion**:
- The assertion states that "Plants manufacture food only during the day time." This is based on the process of photosynthesis, which occurs in the presence of sunlight. During the day, plants utilize sunlight, carbon dioxide, and water to produce glucose and oxygen.

2. **Understanding the Reason**:
- The reason states that "During day time, metabolism is high." Metabolism refers to all the biochemical processes that occur within an organism, including both photosynthesis and respiration. While it is true that photosynthesis occurs during the day, metabolism also includes processes that happen at night, such as respiration.

3. **Evaluating the Truth of Each Statement**:
- The assertion is true because plants primarily perform photosynthesis during the day, which is when they manufacture food.
- The reason is false because metabolism is not exclusively high during the day; it occurs continuously, albeit with different processes being more active at different times.

4. **Conclusion**:
- Since the assertion is true and the reason is false, the correct answer to the question is that the assertion is true and the reason is false.

### Final Answer:
The correct option is: **Assertion is true and Reason is false.**

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