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