Answer
Since points A, B, and C are located at the same depth, the pressure is the same at all three points.
Work Step by Step
$P = P_0 + \rho~g~h$
$P$ is the pressure
$P_0$ is the atmospheric pressure
$\rho$ is the density of the liquid
$h$ is the depth below the surface
For all six points A to F, $P_0$ is the same. Therefore, a point that is located deeper under the surface will have a higher pressure because the value of $h$ is greater.
Since points A, B, and C are located at the same depth, the pressure is the same at all three points.
