There are three blocks. We call them A, B and C. Block A is above B. Block B is to the right of C. Block A has a big yellow square. It also contains one small black square. Near to the big yellow square there is the small black square. Block B contains one small yellow square and one medium blue square. The small yellow square is above and to the left of the medium blue square. The medium blue square is touching the right edge of this block. Block C has a small black square. This block also has a medium blue square. The small black square is near to the medium blue square.
What is to the left of the thing that is touching the right edge of a block? a big yellow square or a medium blue square?
big yellow square  medium blue square  both of them none of them