We have three blocks. We call them A, B and C. Block A has one big blue triangle. Block B is below block A. It has a big black circle. This block also has a big yellow circle. This block also has a small black triangle. Above and near to a big black triangle there is a small blue square. The big black circle is near to, below and to the left of the big yellow circle. The big yellow circle is touching the right edge of this block. Finally, there is block C to the left of block A. It has one medium blue triangle and one small black triangle. The medium blue triangle is to the left of the small black triangle.
What is to the left of the big blue triangle? a big black triangle or a small black triangle?
big black triangle  small black triangle  both of them none of them