Temperature of the scrotum which is necessary for the functioning of testis is always around `"______"` below body temperature.

Options

A. `2^(@)C`
B. `4^(@)C`
C. `6^(@)C`
D. `8^(@)C`

Answer

To solve the question regarding the temperature of the scrotum necessary for the functioning of the testis, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Role of the Scrotum**:
- The scrotum is a pouch-like structure that contains the testis. It plays a crucial role in regulating the temperature necessary for sperm production.

2. **Identifying the Required Temperature**:
- For the process of spermatogenesis (the formation of sperm), the temperature in the scrotum needs to be lower than the normal body temperature.

3. **Determining the Temperature Difference**:
- Research indicates that the optimal temperature for testicular function is approximately 2 degrees Celsius below the normal body temperature.

4. **Selecting the Correct Answer**:
- Given the options (2°, 4°, 6°, and 8°), we conclude that the correct answer is 2°.

5. **Final Answer**:
- Therefore, the temperature of the scrotum which is necessary for the functioning of the testis is always around **2 degrees Celsius below body temperature**.