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