When Measuring the Temperature of Gases, Kelvin Is Often Used

When measuring the temperature of gases, Kelvin is often used because it is a function of the kinetic energy of a gas.If a gas is 121 K, what is its temperature in °C?

A) 322 °C
B) -152 °C
C) -242 °C
D) 394 °C
E) 250 °C