Yes, option A is correct. A landscape artist can create the illusion of depth and make an object in the foreground appear closer than an object in the background by making the foreground object larger in comparison to the background objects. This technique is known as the principle of relative size. By making the foreground object larger, it appears closer to the viewer, while the smaller background objects seem farther away. This size contrast helps to create the perception of depth and distance in a two-dimensional painting or drawing.