A tank with base area ${\mathrm{L}}^2$ is filled with a liquid to height H. The tank is accelerated horizontally with acceleration a as shown in figure. If a small hole is made at the point A, then it is observed that the liquid does not come out of the tank. The magnitude of acceleration should be

• A

  $\frac{\mathrm{H}}{\mathrm{L}}\mathrm{g}$

• B

  $\frac{\mathrm{L}}{\mathrm{H}}\mathrm{g}$

• C

  g

• D

  none of these