There are three blocks, A, B and C. Block B is to the left of A and block C is above B. Block A has one medium yellow square. Block B contains 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. And block C has one medium black square and a medium yellow square. Below the medium yellow square is the medium black square.
Is there a medium black square to the left of all medium yellow squares?