We have three blocks, A, B and C. Block C is to the left of and A is to the right of B. Block A has a medium blue triangle. Block B has one medium yellow circle. And block C contains a big yellow square and one small black square. The big yellow square is below and to the left of a big black square. The small black square is touching the bottom edge of this block. It is below the big black square.
What is to the left of the medium yellow thing? a big black square or a medium blue triangle?
big black square  medium blue triangle  both of them none of them