A tank is filled with water up to a height `H`. Water is allowed to come out of a hole `P` in one of the walls at a depth `D` below the surface of water. Express the horizontal distance `x` in terms of `H` and `D`
.
A. `x = sqrt(D(H - H))`
B. `x = sqrt((D(H - D))/(2))`
C. `x = 2 sqrt(D(H - D))`
D. `x = 4 sqrt(D(H - D))`
