There are two blocks, A and B. Block A contains one big yellow triangle. Below block A we have block B which contains a big blue triangle and one medium blue square. A small blue triangle is to the left of the medium blue square and the big blue triangle. This block also has a small black square. The medium blue square is touching the right edge of this block. The big blue triangle is below the small black square and the medium blue square.
Which object is below a big triangle? the small black thing or the medium object that is touching the right edge of a block?
the small black thing the medium object that is touching the right edge of  a block  both of them none of them