We have three blocks. We call them A, B and C. Block C is to the left of blocks A and B. Block A has a big yellow triangle. Block B has a big blue triangle. And block C contains one medium black triangle, one small black square and one big black circle. The medium black triangle is below and to the right of the small black square. This shape is to the left of the big black circle.
Which object is to the left of a big triangle? the big yellow triangle or the big black circle?
the big yellow triangle  the big black circle  both of them none of them