There are three blocks. Lets call them A, B and C. Block A has one medium yellow square. Then, there is block B. It contains a medium yellow square and one medium blue square. Below the medium blue square is the medium yellow square. Finally, to the left of block B we have block C which is above block A. It contains a medium blue square and a medium black square. This block also has a medium yellow square. The medium blue square is touching the bottom edge of this block. Below the medium yellow square there is the medium black square. The medium blue square is below the medium yellow square and the medium black square.
Which object is below a black thing? the medium blue square that is in block B or the medium blue square which is touching the bottom edge of a block?
the medium blue square  that is in block B the medium blue square  which is touching the bottom edge of a block  both of them none of them