There are three blocks. Lets call them A, B and C. Block B is above A. Block A is below C. Block A contains a medium yellow square. A medium black square is touching the bottom edge of this block. It is below the medium yellow 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. This object is below the medium black square. And block C contains one medium blue square.
Which object is above a medium black square? the medium yellow square that is touching the bottom edge of a block or the medium yellow square that is in block A?
the medium yellow square  that is touching the bottom edge of a block  the medium yellow square  that is in block A both of them none of them