We have two blocks, A and B. There is a small yellow square in block A. Below block A we have block B with one medium blue triangle and a big blue square in it. One small blue triangle is also touching the bottom edge of this block. It also has one medium black square. This object is above the small blue triangle. To the right of and above the small blue triangle is the medium blue triangle. It is below the medium black square and the big blue square.
Which object is below a yellow object? the medium blue triangle or the medium black square that is touching the top edge of a block?
the medium blue triangle  the medium black square  that is touching the top edge of a block  both of them none of them