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