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