Two Pistons Push Down on the Fluid Filling Two Cylinders

Multiple Choice

Two pistons push down on the fluid filling two cylinders connected by a narrow hose,as shown in the figure.The area A₁ is 1 square inch,and the area A₂ is 10 square inches.A force of 4 pounds is exerted downward on piston 1,as shown.
-The pressure on A₂ in psi is

A) 0.25.
B) 0.4.
C) 4.
D) 10.
E) 40.