There are three blocks, A, B and C. Block A has two medium yellow triangles. Medium yellow triangle number one is to the right of and below medium yellow triangle number two. Medium yellow triangle number two is above a medium black triangle. This block also contains one small blue circle. The small blue circle is above medium yellow triangle number one and the medium black triangle. The medium black triangle is touching the bottom edge of this block. Then, we have block B with a big yellow circle and one small blue circle in it. The big yellow circle is touching the top edge of this block. This object is to the right of the small blue circle. Block C is to the left of block B and to the right of block A. It has one medium black square. A big black circle is to the left of, near to and above the medium black square.
What is to the left of the big black circle? a object which is touching the top edge of a block or a medium yellow triangle?
object which is touching the top edge of a block  medium yellow triangle  both of them none of them