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