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