There are three blocks. We call them A, B and C. Block A contains one medium blue square. Block B is to the left of block A. It has a medium yellow square and a medium black square. The medium yellow square is touching the bottom edge of this block. This shape is below the medium black square. To the left of block B there is block C. It has two medium black squares. Medium black square number one is below medium black square number two.
What is to the left of the blue thing? a medium black square which is in block B or a medium black square number two?
medium black square  which is in block B medium black square  number two both of them none of them