There are two blocks, A and B. Block A is below B. Block A has a medium black square, one big blue square and one big yellow triangle. The big blue square is to the right of the big yellow triangle. The medium black square is above the big yellow triangle. The big yellow triangle is touching the bottom edge of this block. The medium black square is near to the big blue square. Block B contains a big yellow circle, a small yellow circle and one medium blue square. To the right of the small yellow circle which is far from and above the medium blue square there is the big yellow circle. The medium blue square is touching the bottom edge of this block.
Which object is below a big yellow circle? the big blue square or the medium blue square?
the big blue square  the medium blue square  both of them none of them