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