Which equivalent expression would you set up to verify the associative property of addition for the given polynomials (3x + 4), ((5x² - 1)(2x + 6))?
A) (3x + 4)(5x² - 1)(2x + 6)
B) (3x + 4)((5x² - 1)(2x + 6))
C) ((3x + 4)(5x² - 1))(2x + 6)
D) ((3x + 4)(2x + 6))(5x² - 1)
