There are three blocks. Lets call them A, B and C. Block A is to the right of C. Block C is to the left of B. Block A contains one big blue square, a medium blue circle and one medium yellow triangle. The big blue square is touching the right edge of this block. A big yellow square is to the left of the big blue square and the medium yellow triangle. The medium yellow triangle is touching the right edge of this block. Above and touching the medium yellow triangle is the medium blue circle. Block B has one big blue square. Block C contains a big yellow triangle.
Which object is touching a medium yellow triangle? the medium blue circle or the big yellow square?
the medium blue circle  the big yellow square  both of them none of them