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