The temperature measured in Kelvin (K) is the temperature measured in Celsius (C) increased by 273.15. This can be modeled by the equation K = C + 273.15.

When solved for C, the equation is

C = K - 273.15

C = 273.15 - K

C = K + 273.15

C = 273.15K

A. C=K - 273.15

Here they hav given the same value as 273.15 just to mislead you.

To find a temperature in Kevin's for a given temperature, you hav to add 273.15 to the given C° temperature.

So in this case write the equation

K = C° + 273.15

So to find the C° take the 273.15 to the other side of the eual sign.

Then the answer is

C° = K - 273.15