There are three blocks. Lets call them A, B and C. There is one medium black square in block A. This block also has one medium blue square. The medium blue square is below the medium black square. Block B is to the right of block A. It contains one medium yellow square. Finally, we have block C above block B. It has a medium blue square and one medium black square. Below the medium black square there is the medium blue square.
What is to the left of the yellow shape? a medium black square that is in block A or a medium black square which is in block C?
medium black square  that is in block A medium black square  which is in block C both of them none of them