Answer:
A. 18,000 N
Step-by-step explanation:
By using Pascal's principle, we can say that the pressure on first piston is equal to the pressure on the second piston. Therefore we have:


where:
is the force on the first piston
is the area of the first piston
is the force on the second piston
is the area of the second piston
Re-arranging the equation, we find:
