If the pressure of a gas contained in a closed vessel increases by x% when heated by 1⁰C , its initial temperature is

• A

  (100/x) Kelvin

• B

  (100/x) Celsius

• C

  $\left(\frac{\mathrm{x}+100}{\mathrm{x}}\right)\text{ Kelvin }$

• D

  $\left(\frac{100-\mathrm{x}}{\mathrm{x}}\right)\text{ Celsius }$