There are three blocks. Lets call them A, B and C. Blocks A and B are below C. Block A has one big blue square. Block B has one medium black square and one small blue circle. Below and to the left of the small blue circle is the medium black square. And block C has one big yellow circle and one medium black square. The big yellow circle is below and to the left of the medium black square.
What is below the yellow shape? a small circle or a big blue square?
small circle  big blue square  both of them none of them