There are three blocks, A, B and C. There is one big yellow square in block A. Then, we have block B which contains one big blue circle. Below blocks B and A there is block C. It has a big yellow triangle, a medium yellow square and a medium yellow triangle. To the right of the medium yellow triangle there is the big yellow triangle. It is below and touching the medium yellow square.
What is below the blue thing? a medium yellow square or a medium yellow triangle?
medium yellow square  medium yellow triangle  both of them none of them