There are three blocks, A, B and C. Block C is to the left of A and block B is above C. Block A has one medium yellow square. Block B contains a medium black square. A medium yellow square is below the medium black square. Block C has a medium blue square and one medium yellow square. The medium blue square is touching the bottom edge of this block. This object is below the medium yellow square.
What is above the blue shape? a black thing or a medium yellow square?
black thing medium yellow square  both of them none of them