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.
Which object is to the left of a big square? the medium black triangle or the small black square?
the medium black triangle  the small black square  both of them none of them