An ideal gas heat engine operates in a Carnot cycle between $227 °\mathrm{C}$ and $127 °\mathrm{C}$. It absorbs $6 \mathrm{kcal}$ of heat at a higher temperature. The amount of heat in $\mathrm{kcal}$ rejected to sink is

• Correct answer
  A

  $4.8$
• B

  $2.4$
• C

  $1.2$
• D

  $6.0$

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