There are three blocks. Lets call them A, B and C. There are one big blue square and one big yellow circle in block A. The big blue square is touching the bottom edge of this block. This block also has a small yellow circle. It is touching the right edge of this block. Below the big yellow circle is the big blue square. It is to the left of and near to the small yellow circle. Then, there is block B which has one big black circle. Block C is to the right of block A and to the left of block B. It contains a medium yellow square and one medium black triangle. To the left of the medium black triangle there is the medium yellow square.
What is to the left of the big black circle? a big yellow circle or a medium black triangle?
big yellow circle  medium black triangle  both of them none of them