The boiling point of water in Kelvin scale is:

The supplied temperature must be multiplied by 273.15 to obtain the temperature in Kelvin. ${}^{\circ }\mathrm{C}$ value.
The temperature needed to change a liquid into a gas is known as the boiling point. The boiling point of water is $100°\mathrm{C}$. Water transforms into water vapour at this temperature.
Add 273.15 to the given value to convert to the Kelvin scale ${}^{\circ }\mathrm{C}$ value.
Therefore, $100°\mathrm{C}=100+273.15=373.15 \mathrm{K}$

Hence, the correct answer is option D.