We have three blocks, A, B and C. A small black square, one big black triangle and a big black circle are in block A. The big black circle is touching the bottom edge of this block. The small black square is touching the bottom edge of this block. This shape is near to the big black circle. It is to the left of and below the big black triangle. Below block A there is block B which has one medium blue square, one medium blue circle and a small blue square. The medium blue square is touching the right edge of this block. It is below and to the right of the medium blue circle which is to the right of and above the small blue square. Below block B there is block C which contains a small blue triangle, one small black triangle and one medium blue triangle. To the left of the small blue triangle there is a medium black circle. Below and to the left of the medium blue triangle there is the small black triangle. The medium black circle is above the small black triangle. The small blue triangle is touching the right edge of this block. This object is below the medium blue triangle. This object is to the right of the black object which is below the medium blue triangle.
Which object is above a medium black circle? the big black triangle or the small black square?
the big black triangle  the small black square  both of them none of them