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