We have two blocks, A and B. Block A is above B. Block A contains a big yellow square. Block B contains a small yellow triangle and one medium blue triangle. A big yellow triangle is touching the bottom edge of this block. The small yellow triangle is near to the medium blue triangle. A small black circle is also in this block. The small black circle is to the left of the medium blue triangle , the small yellow triangle and the big yellow triangle. The big yellow triangle is near to the medium blue triangle.
Which object is below a big yellow thing? the medium blue object or the small yellow triangle?
the medium blue object the small yellow triangle  both of them none of them