We have three blocks, A, B and C. There are a big yellow circle and a medium black square in block A. Above the medium black square there is a medium yellow triangle. The big yellow circle is to the left of and near to the medium black square. Then, we have block B which contains two medium yellow triangles. Medium yellow triangle number one is to the left of medium yellow triangle number two. Finally, below block B we have block C which is above block A. It has one medium blue triangle and a medium yellow circle. To the right of the medium yellow circle there is the medium blue triangle.
Which object is below a medium yellow triangle? the medium black square or the medium blue triangle?
the medium black square  the medium blue triangle  both of them none of them