The domain of f(x) is the set of all real values except 7, and the domain of g(x) is the set of all real values except -3. Which of the following describes the domain of (gºf)(x)?
O all real values except X=-3 and the x for which f(x)+7
O all real values except X+-3 and the x for which f(x)=-3
O all real values except x 7 and the x for which fx)+7
all real values except x + 7 and the x for which f(x) 6-3