We have two blocks, A and B. There is a small yellow square in block A. Above block A is block B. It has one medium blue triangle and a medium black triangle. A medium blue square is also in this block. There is also a big black circle touching the bottom edge of this block. To the right of the medium blue square and the big black circle is the medium blue triangle.
Which object is above a yellow square? the medium black triangle or the medium blue square?
the medium black triangle  the medium blue square  both of them none of them