There are three blocks, A, B and C. Block C is below block A and to the right of block B. Block A contains one medium blue square. A medium yellow square is below a medium black square and the medium blue square. Below the medium blue square there is the medium black square. Block B contains one medium blue square. Block C has one medium yellow square.
Which object is above a medium yellow square? the medium blue square that is in block B or the medium blue square that is in block A?
the medium blue square  that is in block B the medium blue square  that is in block A both of them none of them