There are three blocks. We call them A, B and C. Block C is above block B and to the right of block A. Block A contains a big blue circle, a medium black square and one small black square. To the left of the medium black square there is the big blue circle. It is above and touching the small black square. Block B has one medium black triangle. Block C has a big yellow square.
What is to the left of the big square? a small black square or a medium black triangle?
small black square  medium black triangle  both of them none of them