There are three blocks, A, B and C. Block A contains one medium black square. This block also has a medium yellow square. The medium black square is below the medium yellow square. Then, we have block B with one medium black square in it. Block C is to the left of block A and to the right of block B. It has a medium black square and one medium blue square. The medium black square is touching the bottom edge of this block. It is below the medium blue square.
Which object is to the left of a medium black square? the yellow thing or the medium blue square?
the yellow thing the medium blue square  both of them none of them