There are three blocks. We call them A, B and C. Two medium black squares are in block A. Below a medium blue square and medium black square number two there is medium black square number one. Below medium black square number two is the medium blue square. Below block A is block B with a medium yellow square in it. A medium black square is touching the bottom edge of this block. It is below the medium yellow square. Above block A there is block C. It has one medium yellow square.
What is above the blue shape? a medium yellow square that is in block B or a medium yellow square that is in block C?
medium yellow square  that is in block B medium yellow square  that is in block C both of them none of them