We have three blocks, A, B and C. One big yellow square is in block A. A small blue triangle is above the big yellow square. Then, we have block B which contains a small blue square. One medium blue square is also in this block. The medium blue square is to the left of the small blue square. Block C is below block A and to the right of block B. It has a small black square and a small blue square. A big blue square is below the small black square. It is above and to the right of the small blue square.
Which object is above a small blue square? the medium blue square or the black object?
the medium blue square  the black object both of them none of them