There are three blocks. We call them A, B and C. Block B is above blocks C and A. Block A contains one big yellow square, one small black circle and one small yellow triangle. The big yellow square is touching the bottom edge of this block. The small black circle is below and to the right of the small yellow triangle. The small yellow triangle is touching the top edge of this block.. Far from the small yellow triangle is the big yellow square. Block B contains one big blue triangle. And block C has a big black circle. A small yellow circle is above the big black circle and a medium blue triangle. The medium blue triangle is touching the right edge of this block. This block also has a medium yellow square. The big black circle is touching the bottom edge of this block. It is below, touching and to the left of the medium blue triangle.
What is below the medium blue triangle? a big black circle that is in block C or a big black circle which is in block C?
big black circle  that is in block C big black circle  which is in block C both of them none of them