There are three blocks, A, B and C. Block B is to the right of block C and to the left of block A. Block A has a medium blue square. Block B has a medium black square. And block C has two medium yellow squares. One medium black square is also in this block. It is below medium yellow square number two. Medium yellow square number one is touching the bottom edge of this block. It is below medium yellow square number two. It is below the black object which is below medium yellow square number two.
What is to the left of the blue object? a medium black square that is in block B or a medium black square that is in block C?
medium black square  that is in block B medium black square  that is in block C both of them none of them