There are three blocks, A, B and C. Blocks B and C are above A. Block A has a medium yellow square. Block B contains two medium blue squares. It also contains a medium yellow square. Medium blue square number two is below the medium yellow square. Medium blue square number one is touching the bottom edge of this block. This object is below the medium yellow square and medium blue square number two. And block C contains one medium yellow square. The medium yellow square is below a medium black square.
Which object is above a medium yellow square? the medium yellow square that is in block C or the medium yellow square that is in block B?
the medium yellow square  that is in block C the medium yellow square  that is in block B both of them none of them