There are three blocks, A, B and C. Two medium yellow squares are in block A. Below medium yellow square number two there is medium yellow square number one. There is also one medium blue square touching the bottom edge of this block. The medium blue square is below medium yellow square number one. It is below medium yellow square number two. To the left of block A we have block B with one medium yellow square in it. To the left of block B there is block C which has a medium black square.
What is to the left of the blue object? a medium yellow square or a medium black square?
medium yellow square  medium black square  both of them none of them