We have three blocks, A, B and C. Block B is to the left of A. Block C is below B. Block A has one medium blue square. Block B contains a medium yellow square and one medium black square. The medium yellow square is touching the bottom edge of this block. It is below the medium black square. Block C contains two medium yellow squares. Medium yellow square number one is below medium yellow square number two. A medium black square is also in this block. Below medium yellow square number one and medium yellow square number two is the 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 B?
the medium black square  that is in block C the medium black square  that is in block B both of them none of them