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