Which of the following statement is true?a) characteristic gas constant is given by dividing the universal gas constant by the molecular weightb) Avogadro’s number (

• A. characteristic gas constant is given by dividing the universal gas constant by the molecular weight
• B. Avogadro’s number (A) = 6.023 * 10^26 molecules/kgmol
• C. Boltzmann constant (K) = 1.38 * 10^-23 J/molecule K
• D. all of the mentioned