There are three blocks. We call them A, B and C. Block C is below block A and it is to the right of block B. Block A contains one medium black square, one medium yellow square and a medium blue square. The medium black square is touching the bottom edge of this block. Below the medium blue square there is the medium yellow square.. The medium black square is below the medium yellow square and the medium blue square. Block B has a medium yellow square and a medium blue square. Below the medium blue square there is the medium yellow square. Block C contains one medium blue square.
Which object is to the left of a medium blue square? the medium yellow square which is in block A or the medium yellow square that is in block B?
the medium yellow square  which is in block A the medium yellow square  that is in block B both of them none of them