There are three blocks, A, B and C. Block A has a big blue circle. Block B is to the left of block A. It contains a small yellow square and a small black circle. The small yellow square is to the right of and above the small black circle. Above block B there is block C which has one small blue triangle and a medium yellow triangle. The small blue triangle is to the left of and below the medium yellow triangle.
Which object is above a black object? the medium shape or the small yellow square?
the medium shape the small yellow square  both of them none of them