We have three blocks, A, B and C. There is a medium yellow square in block A. Block B is below block A. It contains one medium black square. This block also has a medium blue square. The medium black square is touching the bottom edge of this block. This object is below the medium blue square. To the left of block B there is block C with a medium yellow square in it. It also has one 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 blue thing? the medium black square which is in block C or the medium black square which is touching the bottom edge of a block?
the medium black square  which is in block C the medium black square  which is touching the bottom edge of a block  both of them none of them