Find (g°f)(x) when f(x) = √(x + 3) and g(x) = (x² - 2)/(x).

a) ( x² + 4/x + 3 )
b) ( x² - 4/x + 3 )
c) ( x² - 4/x - 3 )
d) ( x² + 4/x - 3 )