We have three blocks. We call them A, B and C. A medium blue square, a medium yellow triangle and a medium black square are in block A. The medium blue square is near to and above the medium yellow triangle. To the left of and below the medium black square is the medium yellow triangle. The medium black square is touching the right edge of this block. Then, there is block B which has one big blue square. Finally, below block B we have block C. It is to the left of block A. It contains one big yellow square and one small blue triangle. Below the small blue triangle there is the big yellow square. The small blue triangle is touching the right edge of this block.
Which object is to the left of a medium square? the medium yellow triangle or the big yellow square?
the medium yellow triangle  the big yellow square  both of them none of them