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