We have three blocks. Lets call them A, B and C. Block B is below block C and above block A. Block A has one medium yellow 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. And block C has a medium blue square and one medium yellow square. Below the medium yellow square is the medium blue square.
Which object is below a medium yellow square? the medium blue square that is in block B or the medium blue square that is in block C?
the medium blue square  that is in block B the medium blue square  that is in block C both of them none of them