There are three blocks, A, B and C. There are a medium black square and a medium yellow square in block A. The medium black square is touching the bottom edge of this block. This shape is below the medium yellow square. Block B is to the left of block A. It contains a medium blue square. Above block B there is block C with a medium yellow square in it. It also has one medium blue square. Below the medium blue square there is the medium yellow square.
Which object is above a medium blue square? the medium yellow square which is in block C or the medium yellow square that is in block A?
the medium yellow square  which is in block C the medium yellow square  that is in block A both of them none of them