There are three blocks, A, B and C. Block B is below A. Block A is above C. Block A contains a medium black circle and one big blue triangle. The medium black circle is above and to the left of the big blue triangle. Block B has a small yellow square and a big black circle. This block also contains a big yellow triangle. Near to the big black circle which is below the big yellow triangle there is the small yellow square. It is to the right of and below the big yellow triangle. And block C has a medium blue triangle.
Which object is below a medium black circle? the big yellow triangle or the small thing?
the big yellow triangle  the small thing both of them none of them