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