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