Which of the following is the complete factorization of 9(p+q)2−(p2−q2)2?
(p−q)2(3−p+q)(3+p−q)
(p+q)2(3−p−q)(3+p+q)
(p+q)2(3−p+q)(3+p−q)
(3p+3q−p2+q2)(3p+3q+p2−q2)
