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