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