We have three blocks. We call them A, B and C. Block A is below and C is to the left of B. Block A contains a medium black triangle. A big black triangle is touching the bottom edge of this block. This shape is to the right of the medium black triangle. Block B has one big yellow triangle. And block C has a medium black square, a small blue square and a small yellow square. To the right of and above the small blue square which is below the small yellow square is the medium black square. The small yellow square is touching the right edge of this block.
Which object is to the left of a big yellow triangle? the small blue square or the medium black triangle?
the small blue square  the medium black triangle  both of them none of them