There are three blocks, A, B and C. Blocks C and A are to the right of B. Block A has a medium blue square. A medium yellow square is touching the bottom edge of this block. It is below the medium blue square. Block B contains a medium black square. This block also has a medium yellow square. The medium yellow square is below the medium black square. And block C contains a medium black square.
Which object is below a blue thing? the medium black square which is in block B or the medium black square that is in block C?
the medium black square  which is in block B the medium black square  that is in block C both of them none of them