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