There are three blocks. We call them A, B and C. Block B is below C and block A is below B. Block A has one medium blue triangle. To the left of and above the medium blue triangle is a big blue circle. Block B contains a big yellow triangle and one small yellow circle. The big yellow triangle is touching the right edge of this block. It is above and to the right of the small yellow circle. Block C contains a medium yellow square.
What is below the shape that is touching the right edge of a block? a small yellow circle or a medium blue triangle?
small yellow circle  medium blue triangle  both of them none of them