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