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