There are three blocks, A, B and C. Block A contains a big black triangle. Above block A is block B. It has a small blue circle, one medium black triangle and a big blue square. This block also has a medium yellow circle. A medium blue circle is also in this block. The small blue circle is to the right of the big blue square and the medium yellow circle. To the left of the medium yellow circle there is the big blue square. Finally, there is block C which is to the left of block A. It contains one big black triangle. This block also has one big yellow triangle. A medium blue triangle is touching the right edge of this block. Below and to the right of the big black triangle is the big yellow triangle. The medium blue triangle is to the right of the big black triangle.
Which object is above a big black triangle? the medium yellow circle or the medium blue triangle that is touching the right edge of a block?
the medium yellow circle  the medium blue triangle  that is touching the right edge of  a block  both of them none of them