The correct choice is (c) kinetic head
Explanation: EGL is obtained by plotting total head and HGL is obtained by plotting piezometric head at various points along the axis of the pipe.
Hp = P ⁄ γ + z
where H is the total head, P ⁄ γ is the pressure head, z is the potential head, Hp is the piezometric head, and v^2 / 2g is the velocity head.
H – Hp = v^2 / 2g, the vertical intercept between EGL and HGL is equal to the kinetic head.