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