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