We have three blocks, A, B and C. Block A has a small black square and one small blue triangle. Below the small blue triangle is the small black square. Then, we have block B which has one medium blue square. Finally, we have block C. It is above block B and to the right of block A. It contains one small yellow square and a big blue circle. A small black square is above the small yellow square and the big blue circle. The big blue circle is touching the bottom edge of this block. Above the big blue circle is the small yellow square.
Which object is below a small square? the medium square or the small blue triangle?
the medium square  the small blue triangle  both of them none of them