Correct Answer:
Option D - The value of 273 K is 0°C because the Celsius scale starts at 0°C while Kelvin starts at 273 K, so 0 °C is equal to 273 K.
D. The value of 273 K is 0°C because the Celsius scale starts at 0°C while Kelvin starts at 273 K, so 0 °C is equal to 273 K.