There are three blocks, A, B and C. Blocks B and C are to the left of A. Block A has a medium blue square. A medium black square is below the medium blue square. Block B contains three medium blue squares. It also has a medium black square. This shape is below medium blue square number three. This shape is below medium blue square number two. Medium blue square number one is below medium blue square number two and medium blue square number three. Below medium blue square number three there is medium blue square number two. Block C has one medium black square and a medium blue square. The medium black square is below the medium blue square.
Which object is to the left of a medium black square? medium blue square number one or the medium blue square which is in block C?
medium blue square  number one the medium blue square  which is in block C both of them none of them