We have three blocks, A, B and C. Block B is above blocks C and A. Block A contains one medium yellow square. Block B has one medium blue square. Block C contains one medium yellow square, one medium black square and one medium blue square. The medium yellow square is touching the bottom edge of this block. Below the medium blue square there is the medium black square. Below the medium black square and the medium blue square is the medium yellow square.
Which object is below a medium blue square? the black thing or the thing that is touching the bottom edge of a block?
the black thing the thing that is touching the bottom edge of a block  both of them none of them