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