A Closed Cubical Chamber Resting on the Floor Contains Oil

Multiple Choice

A closed cubical chamber resting on the floor contains oil and a piston.If you push down on the piston hard enough to increase the pressure just below the piston by an amount Δp,which of the following statements is correct? (There could be more than one correct choice. )

A) The pressure everywhere in the oil will increase by Δp.
B) The pressure at the bottom of the oil will increase by more than Δp.
C) The pressure at the top of the oil will increase by less than Δp.
D) The pressure on the sides of the chamber will not increase.
E) The increase in the force on the top of the chamber will be the same as the increase in the force on the bottom of the chamber.