Hello there! :)

Room temperature is approximately 20°C.
We can automatically eliminate choices B and D since they are not equal to 20°C.
Since some choices use the Kelvin scale, we can convert from Celsius to Kelvin using a simple formula:
K = C° + 273
Find room temperature in degrees Kelvin:
K = 20° + 273
K = 293°
Thus, the correct choice would be C. 293K.