There are three blocks, A, B and C. Block A has one big black triangle and one big black square. The big black triangle is above, to the right of and near to the big black square. Then, we have block B which has one medium yellow circle. Block C is above block A and to the right of block B. It has a small black triangle, a small blue circle and a big blue triangle. Above the big blue triangle there is the small black triangle. The small blue circle is touching the right edge of this block. It is near to and touching the big blue triangle.
What is below the small black triangle? a medium circle or a black square?
medium circle  black square  both of them none of them