There are three blocks. Lets call them A, B and C. Block C is above A. Block A is to the left of B. Block A has two medium black squares. Below a medium yellow square and medium black square number two there is medium black square number one. Medium black square number two is below the medium yellow square. Block B contains one medium blue square and a medium black square. Below the medium black square and a medium yellow square there is the medium blue square. Below the medium yellow square there is the medium black square. Block C has a medium blue square and a medium black square. Below the medium black square is the medium blue square.
Which object is to the left of a medium yellow square? the medium black square that is in block B or medium black square number one?
the medium black square  that is in block B medium black square  number one both of them none of them