Match column I with column II and select the correct option from the given codes.
`{:(Column I, ColumnII),(A."Eurythermal",(i)"Able to tolerate narrow range of temperature"),(B."Stenothermal",(ii)"A stage of suspended development"),(C."Conformers",(iii)"Body temperature changes with ambient temperature"),(D."Diapause",(iv)"Able to tolerate wide range of temperature"):}`

Options

A. `A-(iv),B-(i),C-(iii),D-(i)`
B. `A-(iv),B-(i),C-(ii),D-(iii)`
C. `A-(ii),B-(iv),C-(iii),D-(i)`
D. `A-(i),B-(ii),C-(iii),D-(iv)`

Answer

To solve the matching question, we will analyze each term in Column I and match it with the correct description in Column II.

### Step-by-Step Solution:

1. **Identify the terms in Column I:**
- A. Eurythermal
- B. Stenothermal
- C. Conformers
- D. Diapause

2. **Analyze each term:**
- **Eurythermal:** This term refers to organisms that can tolerate a wide range of temperatures. Therefore, it matches with (iv) "Able to tolerate wide range of temperature."
- **Stenothermal:** This term refers to organisms that can only tolerate a narrow range of temperatures. Thus, it matches with (i) "Able to tolerate narrow range of temperature."
- **Conformers:** These organisms do not have mechanisms to regulate their internal environment, meaning their body temperature changes with the ambient temperature. Hence, it matches with (iii) "Body temperature changes with ambient temperature."
- **Diapause:** This term refers to a stage of suspended development or dormancy that some organisms enter to survive unfavorable conditions. Therefore, it matches with (ii) "A stage of suspended development."

3. **Match the terms with their descriptions:**
- A - (iv) Eurythermal - Able to tolerate wide range of temperature
- B - (i) Stenothermal - Able to tolerate narrow range of temperature
- C - (iii) Conformers - Body temperature changes with ambient temperature
- D - (ii) Diapause - A stage of suspended development

4. **Final Matching:**
- A (Eurythermal) → (iv)
- B (Stenothermal) → (i)
- C (Conformers) → (iii)
- D (Diapause) → (ii)

### Conclusion:
The correct matches are:
- A - iv
- B - i
- C - iii
- D - ii

### Correct Option:
The correct option is **A**.