1 . ( x2 y − 3 y2 + 5 x y2 ) − ( − x2 y + 3 x y2 − 3 y2 ) = ?  

• A. ${\text{4 x}}^2{\text{ y}}^2$
• B. ${\text{8 x y}}^2{\text{ − 6 y}}^2$
• C. ${\text{2 x}}^2{\text{ y − 8 x y}}^2{\text{ − 6 y}}^2$
• D. ${\text{2 x}}^2{\text{ y + 2 x y}}^2$

Answer: Option D

Explanation: