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