There are three blocks, A, B and C. A medium blue square and a medium yellow square are in block A. Below the medium yellow square is the medium blue square. Below block A there is block B which has one medium yellow square. A medium blue square is below the medium yellow square. To the left of block A there is block C with one medium black square in it. A medium yellow square is below the medium black square.
Which object is to the left of a medium blue square? the medium yellow square which is in block C or the medium yellow square that is in block B?
the medium yellow square  which is in block C the medium yellow square  that is in block B both of them none of them