What is the domain of the function gx) = 4 |x² - 25|?
A) -[infinity], -5] U [5, [infinity])
B) -[infinity], -5) U -5, 5) U 5, [infinity])
C) -[infinity], -5] U [-5, 5] U [5, [infinity])
D) -[infinity], -5) U [-5, 5) U 5, [infinity])