Assertion: Cryophytes can carry out pholosynthesis even at- `35^@C`
Reason: Some thermal algae can carry on photosynthesis even at `95^@C`

Options

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

Explanation

To analyze the given assertion and reason, we can break down the solution into the following steps:

### Step 1: Understand the Assertion
The assertion states that cryophytes can carry out photosynthesis even at -35°C. Cryophytes are organisms that thrive in extremely cold environments, such as polar regions or high altitudes, and are adapted to perform photosynthesis at low temperatures.

### Step 2: Evaluate the Reason
The reason provided states that some thermal algae can carry out photosynthesis even at 95°C. Thermal algae, also known as thermophiles, are adapted to hot environments, such as hot springs or hydrothermal vents. However, the temperature mentioned (95°C) is higher than what is typically recorded for photosynthetic activity in thermal algae. Most thermal algae can perform photosynthesis at temperatures up to around 75°C.

### Step 3: Determine the Correctness of Assertion and Reason
- The assertion is correct: Cryophytes can indeed perform photosynthesis at -35°C.
- The reason is incorrect: While thermal algae can perform photosynthesis at high temperatures, the claim that they can do so at 95°C is exaggerated; the correct upper limit is around 75°C.

### Step 4: Conclusion
Since the assertion is correct and the reason is incorrect, the relationship between the two statements is not valid. The reason does not correctly explain the assertion.

### Final Answer
- Assertion: Correct
- Reason: Incorrect
- Conclusion: The reason is not a valid explanation for the assertion.

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