There are three blocks. We call them A, B and C. Block B is above block A and it is to the left of block C. Block A contains a medium black square and a medium yellow square. The medium black square is touching the bottom edge of this block. It is below the medium yellow square. Block B has one medium yellow square and a medium blue square. Below the medium blue square there is the medium yellow square. Block C has one medium yellow square and a medium blue square. The medium yellow square is below the medium blue 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 C?
the medium blue square  that is in block B the medium blue square  that is in block C both of them none of them