There are three blocks, A, B and C. Block A is above block C and below block B. Block A has a small blue circle. Block B has a big yellow square, one big yellow circle and a big black square. To the left of the big yellow square , the big yellow circle and the big black square is a medium black triangle. To the left of the big black square there is the big yellow circle. And block C contains one big blue square. To the left of the big blue square there is a big blue circle.
Which object is above a blue circle? the big blue square or the medium triangle?
the big blue square  the medium triangle  both of them none of them