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