We have three blocks. We call them A, B and C. Block B is above and A is to the right of C. Block A contains 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. Block B contains a medium black square. And block C contains two medium yellow squares. Medium yellow square number one is touching the bottom edge of this block. Below a medium blue square is medium yellow square number two. Below medium yellow square number two and the medium blue square there is medium yellow square number one.
Which object is to the left of a medium yellow square? the medium black square which is in block A or the medium black square that is in block B?
the medium black square  which is in block A the medium black square  that is in block B both of them none of them