There are three blocks, A, B and C. Block A contains a medium black square. A medium blue square is also touching the bottom edge of this block. Below the medium black square is the medium blue square. Then, there is block B. It contains a medium blue square. Finally, we have block C which is above block A and block B is below it. It has two medium yellow squares. Medium yellow square number one is touching the bottom edge of this block. This object is below medium yellow square number two.
Which object is below a medium yellow square? the medium yellow square that is touching the bottom edge of a block or the black shape?
the medium yellow square  that is touching the bottom edge of a block  the black shape both of them none of them