There are three blocks, A, B and C. Two medium black squares are in block A. Below medium black square number two is medium black square number one. To the left of block A there is block B which has one medium black square. Below the medium black square there is a medium blue square. To the right of block A there is block C. It contains a medium yellow square.
What is to the left of the yellow object? a medium black square that is in block B or a medium black square number one?
medium black square  that is in block B medium black square  number one both of them none of them