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