GKFix MCQ Question

What is the value of the Boltzmann constant in SI units?

• A. 6.02 × 10⁻²³ J K⁻¹
• B. 8.314 J K⁻¹
• C. 1.602 × 10⁻¹⁹ J K⁻¹
• D. 1.38 × 10⁻²³ J K⁻¹