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