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