There are three blocks, A, B and C. One medium black square is in block A. Block B is to the left of block A. It has one medium blue square and one medium black square. The medium blue square is below the medium black square. Finally, we have block C. It is to the left of block B. It has a medium blue square and one medium yellow square. The medium blue square is below the medium yellow square.
Which object is to the left of a medium blue square? the medium black square that is in block B or the medium black square which is in block A?
the medium black square  that is in block B the medium black square  which is in block A both of them none of them