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