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