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