There are two blocks, A and B. Block A is below B. Block A contains a medium yellow square, a medium black square and one medium blue square. The medium yellow square is below the medium blue square and the medium black square. The medium black square is below the medium blue square. Block B has a medium blue square. A medium black square is touching the bottom edge of this block. It is below the medium blue square.
Which object is below a medium black square? the medium blue square that is in block B or the medium blue square that is in block A?
the medium blue square  that is in block B the medium blue square  that is in block A both of them none of them