We have three blocks. We call them A, B and C. Block A is below B. Block B is to the left of C. Block A contains a medium black triangle, one big blue square and one small black triangle. To the right of the small black triangle and the big blue square is the medium black triangle. Above the small black triangle is the big blue square. Block B has one medium blue circle. Block C has one medium blue square and a medium black square. The medium blue square is below the medium black square.
Which object is to the right of a black triangle? the medium blue square or the medium black square?
the medium blue square  the medium black square  both of them none of them