We have three blocks, A, B and C. There are two medium blue squares in block A. Medium blue square number one is touching the bottom edge of this block. It is below medium blue square number two. Block B is above block A. It has a medium black square. Below block A there is block C which contains a medium yellow square and a medium blue square. The medium yellow square is below a medium black square. The medium blue square is below the medium black square. Below the medium blue square there is the medium yellow square.
What is below the thing that is touching the bottom edge of a block? a medium black square that is in block B or a medium black square that is in block C?
medium black square  that is in block B medium black square  that is in block C both of them none of them