We have two blocks, A and B. Block A is below B. Block A contains a medium yellow square, one medium black square and one medium blue square. The medium yellow square is below the medium black square and the medium blue square. The medium black square is below the medium blue square. Block B contains two medium yellow squares. Medium yellow square number one is below a medium black square and medium yellow square number two. Medium yellow square number one is touching the bottom edge of this block. Below medium yellow square number two is the medium black square.
Which object is below a medium square? the medium black square that is in block B or the medium black square that is in block A?
the medium black square  that is in block B the medium black square  that is in block A both of them none of them