The four arms of a Wheatstone bridge have resistances as shown in the figure. A galvanometer of $15\Omega$ resistance is connected across BD. Calculate the current through the galvanometer when a potential difference of $10 \mathrm{V}$ is maintained across AC.

• A

  $2.44\mu \mathrm{A}$
• B

  $2.44 \mathrm{mA}$
• Correct answer
  C

  $4.87 \mathrm{mA}$
• D

  $4.87\mu \mathrm{A}$

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