There are three blocks, A, B and C. One medium yellow square is in block A. The medium yellow square is touching the bottom edge of this block. This object is below a medium black square. To the left of block A there is block B which contains a medium blue square. To the right of block A there is block C with a medium black square in it. A medium blue square is touching the bottom edge of this block. It is below the medium black square.
Which object is to the left of a yellow thing? the medium black square which is in block A or the medium black square that is in block C?
the medium black square  which is in block A the medium black square  that is in block C both of them none of them