There are three blocks, A, B and C. Block A is to the right of and B is above C. Block A contains a big yellow circle. There is also a big blue triangle in this block. To the right of and below the big blue triangle there is the big yellow circle. Block B contains a small black square. A medium blue triangle is near to and above the small black square. And block C has a medium yellow circle. There is also a small blue triangle touching the bottom edge of this block. The medium yellow circle is to the left of the small blue triangle.
Which object is above a shape that is touching the bottom edge of a block? the black square or the medium yellow circle?
the black square  the medium yellow circle  both of them none of them