There are three blocks. We call them A, B and C. Block B is to the left of C and block C is below A. Block A has a medium yellow square and one medium black square. The medium yellow square is below the medium black square. Block B contains a medium yellow square. Block C contains a medium blue square and one medium yellow square. The medium blue square is below the medium yellow square.
Which object is above a medium yellow square? the black thing or the blue object?
the black thing the blue object both of them none of them