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