We have three blocks. We call them A, B and C. Block B is above A. Block C is above B. Block A contains a small blue circle and a medium blue square. The small blue circle is touching the bottom edge of this block. It is to the left of the medium blue square. Block B has one medium black circle. Block C contains two medium black squares. There is also one small blue triangle in this block. Medium black square number two is touching the bottom edge of this block. Medium black square number one is above medium black square number two and the small blue triangle.
What is above the medium black circle? a small blue triangle or a medium blue square?
small blue triangle  medium blue square  both of them none of them