There are two blocks, A and B. There are one small blue square, a small yellow square and a medium blue circle in block A. The small blue square is below the small yellow square and the medium blue circle. Above block A there is block B with a medium black circle and a big yellow square in it. A medium black triangle is also in this block. The medium black circle is touching the right edge of this block. To the right of and above the medium black triangle there is the big yellow square. The medium black circle is to the right of the big yellow square.
What is to the left of the medium black circle? a small blue square or a medium black triangle?
small blue square  medium black triangle  both of them none of them