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