Sendo !$ A \cup B = \left \{ 0,1,2,3,6,7,9 \right \} !$ !$ A \cap B = \left \{ 0,1,2,3 \right \} !$ e !$ A - B = \left \{ 7 \right \} !$ , julgue o item.

!$ B - A = \left \{ 6,9 \right \} !$.