There are three blocks, A, B and C. Block A contains a medium black circle and a medium blue triangle. The medium blue triangle is touching the bottom edge of this block. To the left of the medium blue triangle there is the medium black circle. Then, there is block B which contains a medium yellow triangle. A big blue square is to the left of and above the medium yellow triangle. To the left of block B and above block A there is block C with one big black square, a small yellow circle and a big yellow circle in it. The small yellow circle is to the right of and above the big yellow circle. Above the big yellow circle is a medium blue circle. The big yellow circle is touching the bottom edge of this block. The big black square is touching the bottom edge of this block. The small yellow circle is above the blue object which is above the big yellow circle. To the right of the yellow object which is above the medium blue circle is the big black square.
Which object is to the left of a big blue square? the small yellow circle or the medium blue circle?
the small yellow circle  the medium blue circle  both of them none of them