We have three blocks. We call them A, B and C. Block B is below block A and to the right of block C. Block A has one medium yellow square and one medium blue square. The medium yellow square is touching the bottom edge of this block. It is below the medium blue square. Block B contains a medium black square. Below the medium black square there is a medium blue square. And block C contains one medium blue square.
What is to the left of the black thing? a medium blue square that is in block C or a medium blue square that is in block A?
medium blue square  that is in block C medium blue square  that is in block A both of them none of them