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