We have three blocks, A, B and C. Block A contains a medium blue square, a big blue triangle and one small yellow circle. One medium black square is also touching the bottom edge of this block. It is below and near to the small yellow circle. To the right of the small yellow circle is the big blue triangle. The big blue triangle is touching the right edge of this block. To the left of the small yellow circle and the big blue triangle there is the medium blue square. Above block A there is block B. It has one medium black triangle. To the left of block B there is block C with one big black triangle in it.
What is below the medium black triangle? a small yellow circle or a big black triangle?
small yellow circle  big black triangle  both of them none of them