There are three blocks, A, B and C. Block A contains a medium yellow square. Block B is to the right of block A. It has two big yellow squares. To the left of big yellow square number two and a big black triangle there is big yellow square number one. Below block B there is block C which has one medium black square and a big black triangle. Below the big black triangle is the medium black square.
What is above the medium black square? a medium yellow square or a big black triangle?
medium yellow square  big black triangle  both of them none of them