There are three blocks, A, B and C. Block C is above A and block A is below B. Block A has a big black triangle. Block B has one big black square. There is also one big yellow square touching the bottom edge of this block. There is also a small yellow square in this block. The big black square is to the left of, near to and above the big yellow square. And block C has one medium blue triangle, a small yellow triangle and a big yellow circle. To the right of, below and near to the small yellow triangle there is the medium blue triangle. The big yellow circle is touching the bottom edge of this block.
What is above the big black triangle? a small yellow square or a big yellow square?
small yellow square  big yellow square  both of them none of them