We have three blocks. We call them A, B and C. Block B is to the right of blocks A and C. Block A has a medium blue square. It also contains a medium yellow square. Below the medium blue square there is the medium yellow square. Block B contains one medium yellow square. Block C has one medium black square. The medium black square is below a medium blue square.
Which object is to the left of a medium yellow square? the medium blue square which is in block A or the medium blue square that is in block C?
the medium blue square  which is in block A the medium blue square  that is in block C both of them none of them