There are three blocks, A, B and C. Block B is to the left of block C and above block A. Block A has one small blue circle. Block B has one medium yellow circle. Block C has one small yellow triangle and one big blue circle. This block also has one medium black triangle. Near to and below the big blue circle is the small yellow triangle. This object is to the left of and touching the medium black triangle.
What is below the big shape? a medium black triangle or a small yellow triangle?
medium black triangle  small yellow triangle  both of them none of them