There are three blocks. We call them A, B and C. Block A is to the left of and C is above B. Block A has one medium yellow square. Block B contains two medium black squares. It also contains one medium blue square. It is below medium black square number two. Below the medium blue square and medium black square number two there is medium black square number one. Block C contains one medium yellow square.
Which object is to the right of a medium yellow square? 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