There are three blocks. We call them A, B and C. There are two medium black triangles in block A. Medium black triangle number one is touching the right edge of this block. It is to the right of medium black triangle number two. To the right of block A we have block B with a big blue triangle and a big yellow triangle in it. Near to and to the left of the big yellow triangle is the big blue triangle. Finally, we have block C. It is below block B. It contains a medium blue square.
What is to the left of the big blue triangle? a medium object that is touching the right edge of a block or a big yellow triangle?
medium object that is touching the right edge of  a block  big yellow triangle  both of them none of them