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