What are the charges stored in the $2 \mu \mathrm{~F}$ and $4 \mu \mathrm{~F}$ capacitors in the given circuit a long time after the key K is closed?

• Correct answer
  A

  $8 \mu \mathrm{C}$ and $8 \mu \mathrm{C}$ respectively
• B

  $\frac{16}{3} \mu \mathrm{C}$ and $\frac{8}{3} \mu \mathrm{C}$ respectively
• C

  $\frac{8}{3} \mu \mathrm{C}$ and $\frac{16}{3} \mu \mathrm{C}$ respectively
• D

  $18 \mu \mathrm{C}$ and $18 \mu \mathrm{C}$ respectively

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