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