We have three blocks, A, B and C. Block C is to the left of B and block B is to the left of A. Block A contains a big yellow triangle. Block B contains a medium blue square. And block C contains a medium black square, a medium blue triangle and a big yellow square. There is also one small black circle in this block. This block also has a big black square. It is to the right of the small black circle and the medium blue triangle. To the left of the big yellow square there is the medium blue triangle. To the right of the small black circle there is the big yellow square.
What is to the left of the big yellow triangle? a small object or a medium black square?
small object medium black square  both of them none of them