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