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