We have three blocks, A, B and C. Block A contains a medium yellow square and one medium black square. The medium yellow square is touching the bottom edge of this block. Below a medium blue square is the medium black square. The medium yellow square is below the medium blue square and the medium black square. Then, we have block B which contains a medium black square. Block C is below block A and above block B. It contains one medium blue square.
Which object is above a medium blue square? the medium black square that is in block B or the medium black square that is in block A?
the medium black square  that is in block B the medium black square  that is in block A both of them none of them