There are three blocks. We call them A, B and C. Block A is to the right of C and block B is to the left of A. Block A contains one medium blue circle. Block B has one small yellow triangle and a big black circle. To the left of the big black circle there is the small yellow triangle. The big black circle is touching the right edge of this block. Block C has one big black circle, a small blue circle and one medium black circle. A small yellow square is also in this block. The big black circle is to the left of the small yellow square. Near to the small yellow square there is the small blue circle. Above the small yellow square is the medium black circle. Above the small yellow square there is a small blue square. The big black circle is touching the bottom edge of this block. The medium black circle is touching the right edge of this block. The big black circle is near to and below the small blue square..
What is to the left of the medium blue circle? a small triangle or a medium black circle?
small triangle  medium black circle  both of them none of them