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