There are three blocks. We call them A, B and C. Block A is to the right of blocks C and B. Block A has a medium blue square. This block also has a medium black square. The medium blue square is touching the bottom edge of this block. This shape is below the medium black square. Block B contains one medium blue square. Block C has three medium yellow squares. Below medium yellow square number two and medium yellow square number three there is medium yellow square number one. Below medium yellow square number three there is medium yellow square number two.
Which object is to the left of a medium blue square? medium yellow square number one or medium yellow square number three?
medium yellow square  number one medium yellow square  number three both of them none of them