GKFix MCQ Question

What are the freezing and boiling points of ammonia (NH3) respectively, according to the text?

• A. 198.4 K and 239.7 K
• B. 239.7 K and 198.4 K
• C. 198.4 °C and 239.7 °C
• D. 239.7 °C and 198.4 °C