There are two blocks, A and B. Block A is above B. Block A has two medium blue squares. Medium blue square number one is touching the bottom edge of this block. This shape is below medium blue square number two. Block B has one medium blue square and one medium black square. The medium blue square is below the medium black square and a medium yellow square. Below the medium black square is the medium yellow square.
What is below the shape that is touching the bottom edge of a block? a medium yellow square or a black object?
medium yellow square  black object both of them none of them