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