The submerged cylinder has pressure D has been greater than pressure B. The buoyant force has been given as force D - force A.
A. Pressure can be defined as the force that has been exerted to the system per unit volume. In the given cylinder, the pressure that has been exerted by the water at the sides of the cylinder has been lower than the buoyant force that has been exerted by the cylinder for moving up to the surface.
Thus pressure D has been greater than pressure B.
B. The buoyant force has been the pressure that has been exerted by the liquid molecules against the solid object. The buoyant force has been the force that has been the total force with respect to the force of the object and has been given as:
Buoyant force = force D - force A
For more information about the buoyant force, refer to the link:
https://brainly.com/question/1967332