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