Suppose that $$f(x) = x^3 - 3 x^2 + 14.$$

(A) List the $x$ values of all local maxima of $f$. If there are no local maxima, enter 'NONE'.
$x$ values of local maximums =

(B) List the $x$ values of all local minima of $f$. If there are no local minima, enter 'NONE'.
$x$ values of local minimums =

(C) List the $x$ values of all the inflection points of $f$. If there are no inflection points, enter 'NONE'.
$x$ values of inflection points =