We have three blocks, A, B and C. There is one small blue triangle in block A. Then, we have block B which contains a medium black triangle, a small yellow circle and a big black triangle. The medium black triangle is below the big black triangle. It is to the right of and far from the small yellow circle. Block C is below block A and to the left of block B. It contains a medium yellow square and one medium blue triangle. Above and to the left of the medium blue triangle there is the medium yellow square.
What is to the left of the circle? a medium blue triangle or a medium black triangle?
medium blue triangle  medium black triangle  both of them none of them