Which of the following options is correct ?

Options

A. `{:("Stenothermal organism","Eurythermal organism"),("Frog","Lizard"):}`
B. `{:("Stenothermal organism","Eurythermal organism"),("Frog","Man"):}`
C. `{:("Stenothermal organism","Eurythermal organism"),("Man","Lizard"):}`
D. `{:("Stenothermal organism","Eurythermal organism"),("Polar bear","Coconut tree"):}`

Explanation

To solve the question regarding which of the options is correct concerning stenothermal and eurythermal organisms, we will follow these steps:

### Step 1: Understand the Definitions
- **Stenothermal Organisms**: These organisms can tolerate only a narrow range of temperatures. Examples include polar bears and frogs.
- **Eurythermal Organisms**: These organisms can tolerate a wide range of temperatures. Examples include most mammals and birds.

### Step 2: Analyze Each Option
1. **Option 1**: Stenothermal is Frog, Eurythermal is Lizard.
- **Analysis**: The frog is indeed a stenothermal organism, but the lizard is not eurythermal; it is also considered stenothermal. Therefore, this option is incorrect.

2. **Option 2**: Stenothermal is Frog, Eurythermal is Man.
- **Analysis**: The frog is a stenothermal organism, and man (human) is a mammal, which is eurythermal. This option is correct.

3. **Option 3**: Stenothermal is Man, Eurythermal is Coconut.
- **Analysis**: This option is incorrect because man is eurythermal, and coconut is also considered a stenothermal organism.

4. **Option 4**: Stenothermal is Polar Bear, Eurythermal is Coconut.
- **Analysis**: The polar bear is a stenothermal organism, but coconut is not eurythermal; it is also stenothermal. Thus, this option is incorrect.

### Step 3: Conclusion
After analyzing all the options, we find that **Option 2** is the only correct one.

### Final Answer
The correct option is **Option 2: Stenothermal is Frog, Eurythermal is Man.**

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