The network shown in the figure is a part of a complete circuit. If at a certain instant the current i is 5 A and is decreasing at the rate of ${10}^3\mathrm{A}/\mathrm{s}$ then ${\mathrm{V}}_{\mathrm{A}}-{\mathrm{V}}_{\mathrm{B}}$ is

• A

  5 V

• B

  10 V

• C

  15 V

• D

  20 V