We have three blocks, A, B and C. Block B is above A. Block A is to the left of C. Block A has one small blue triangle. Block B contains a medium blue triangle and one small blue circle. The medium blue triangle is below the small blue circle. A small blue triangle is above and to the left of the medium blue triangle. Block C has one medium yellow square, a big yellow triangle and a big blue circle. The medium yellow square is above the big yellow triangle which is to the right of, below and near to the big blue circle. It is to the right of the big blue circle.
What is above the medium blue triangle? a small blue triangle or a big yellow triangle?
small blue triangle  big yellow triangle  both of them none of them