We have three blocks, A, B and C. Block A is above B and block B is above C. Block A has one small yellow square. Block B has a big black square. A medium black square is near to and above the big black square. And block C contains one big blue circle. This block also contains one big yellow circle. Far from the big blue circle is the big yellow circle.
Which object is above a big black square? the small yellow object or the big blue circle?
the small yellow object the big blue circle  both of them none of them