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