If a refrigerator of coefficient of performance of 5 has a freezer at a temperature of $-13^{\circ} \mathrm{C}$, then the room temperature is

• A

  $325^{\circ} \mathrm{C}$
• B

  $225^{\circ} \mathrm{C}$
• Correct answer
  C

  $39^{\circ} \mathrm{C}$
• D

  $29^{\circ} \mathrm{C}$

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