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