We have three blocks, A, B and C. Block A contains one medium blue square. There is also a medium yellow square in this block. The medium blue square is touching the bottom edge of this block. It is below the medium yellow square. To the right of block A is block B with two medium blue squares in it. Medium blue square number one is below a medium black square and medium blue square number two. Medium blue square number two is below the medium black square. To the right of block B there is block C. It contains one medium yellow square. It also contains a medium black square. The medium yellow square is below the medium black square.
Which object is to the left of a medium black square? medium blue square number two or the medium blue square which is touching the bottom edge of a block?
medium blue square  number two the medium blue square  which is touching the bottom edge of a block  both of them none of them