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