There are two blocks, A and B. Block A is to the left of B. Block A contains one medium yellow triangle and one big black square. The medium yellow triangle is touching the bottom edge of this block. It is to the left of the big black square. Block B contains a big yellow circle and one medium black circle. It also contains one big blue square. It is near to and to the right of the medium black circle. Above the medium black circle is the big yellow circle. The medium black circle is touching the bottom edge of this block.
What is to the left of the medium black circle? a blue object or a big black square?
blue object big black square  both of them none of them