Do you support trucks are identical each box loaded on the truck has the same mask choose the truck that has the greatest force of gravity acting on it?helpppppp

gravitational force of earth is given by
[tex]F = mg[/tex]
so here the force will depend on the product of mass and gravity
so here force will be more if we took the condition of more masses
so here in 3rd figure
there will be maximum force of gravity on it
because it will have 6 boxes so there will be maximum mass
So figure of truck with 6 boxes on it is correct answer