Explain what is wrong with the expression below and write the correct version: 

• A. The units for the gas constant (R) are missing, and the temperature should be expressed in Kelvin. The corrected version is as follows:
• B. The units for the gas constant (R) are missing, and the temperature should be expressed in Kelvin. The corrected version is as follows:
• C. The value of the gas constant (R) is incorrect and its units are missing. The corrected version is as follows:
• D. The units for the gas constant (R) are missing, and the temperature should be expressed in Kelvin. The corrected version is as follows: