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