Let f(t) = (t - 1)(t - 2)(t - 3). What are all critical points of f? O f has no real critical points. O t=1, t=2, t=3 O 6+ V3 t = 3 O 6+V/3 t = 6 O t = 1 and t = 3 onlyWhich of the follciwing angles is not a critical point of 39(3) ? g(x) 2 fix + 451M312) O E 9 O 1r 3 O 411' Q 0 1011' 9 O 1411