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