We have three blocks, A, B and C. Block C is below block A and above block B. Block A has one medium blue square and one medium black square. The medium blue square is touching the bottom edge of this block. This object is below the medium black square. Block B has a medium black square. And block C contains a medium yellow square. This block also has a medium black square. The medium yellow square is touching the bottom edge of this block. It is below the medium black square.
Which object is below a medium black 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