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