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