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