An electric kettle takes 4 A current at 220 V. If the entire electric energy is converted into heat energy, then the time (in minutes) taken to increase the temperature of 1 kg of water from $34^{\circ} \mathrm{C}$ to $100^{\circ} \mathrm{C}$ is

• A

  $7.50$
• B

  $4.50$
• Correct answer
  C

  $5.25$
• D

  $6.25$

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