There are three blocks, A, B and C. Block A has a medium black square. To the right of block A there is block B which contains one medium yellow square and one medium blue square. The medium yellow square is touching the bottom edge of this block. It is below the medium blue square. To the left of block B there is block C. It has two medium black squares. Below medium black square number two is medium black square number one. This shape is touching the bottom edge of this block. It is below a medium blue square. It also has one medium yellow square. It is below medium black square number two. It is below the medium blue square which is below medium black square number two.
Which object is to the left of a medium yellow square? medium black square number two or the medium black square that is touching the bottom edge of a block?
medium black square  number two the medium black square  that is touching the bottom edge of a block  both of them none of them