the question is in French but the translation is below please provide answers as soon as possible don't need explanation

Exercise 3 (3 points) : Version 1: A tank has the shape of a prism as shown in the figure - 5mn 12mi Surface of the water p 4m1 3ml 12 Blot Water surface I A vertical section of the reservoir Suppose this tank is full of water up to a height of 3 meters. Let x be the distance that separates the bottom of the tank from a horizontal slice of width dx. Let pla be the density of water, in kg/m3 and g the acceleration of gravity in m/sec2. Then the work necessary to empty this tank through a slot placed one meter above this reservoir is given by the integral : (A) 15pgf x(5-x)dx; (B) 15pg](x+1)(4-x)dx; (C) 15pgf (x+2)(3-x)dx; (D) 15pg[x(5-x)dx; (E) 15pg x(5-x)dx; (F) 15pgf (x+1)(5-x)dx.