There are three blocks, A, B and C. Block C is above and B is to the left of A. Block A has a medium black square and a medium blue square. Below the medium blue square is the medium black square. Block B contains two medium blue squares. Below medium blue square number two there is medium blue square number one. And block C has one medium blue square.
What is to the left of the black thing? a medium blue square that is in block A or a medium blue square number one?
medium blue square  that is in block A medium blue square  number one both of them none of them