The temperature of a gas contained in a closed vessel of constant volume increases by $1 °\mathrm{C}$ when the pressure of the gas is increased by $1\%$. The initial temperature of the gas is

• Correct answer
  A

  $100 \mathrm{K}$

   
• B

  $273 °\mathrm{C}$

   
• C

  $100 °\mathrm{C}$

   
• D

  $200 \mathrm{K}$

Hence, the correct answer is option: 'A'.