There are three blocks. Lets call them A, B and C. Block C is above block A and to the left of block B. Block A contains two medium yellow squares. Medium yellow square number one is touching the bottom edge of this block. Below a medium black square there is medium yellow square number two. A medium blue square is below the medium black square. Medium yellow square number one is below the medium blue square , the medium black square and medium yellow square number two. Block B contains one medium blue square. And block C has a 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