We have three blocks, A, B and C. Block A is below C. Block C is to the left of B. Block A contains one medium blue square. Block B contains two medium black squares. Medium black square number one is below medium black square number two. A medium blue square is below medium black square number two and medium black square number one. Block C has a medium blue square and a medium yellow square. The medium blue square is below the medium yellow square.
Which object is above a medium blue 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