Datasets:
| What is the spatial relation betweeen the red block and the blue block? | |
| (A) The red block is directly above the blue block, and they are in the same stack. | |
| (B) The red block is directly below the blue block, and they are in the same stack. | |
| (C) The red block and the blue block are at different stacks. | |
| (D) At least one of the red block and the blue block does not exist in the presented configurations. | |