Although producer prices rose at an unexpectedly steep rate in September, analysts said that the increase resulted mostly from temporary factors and not necessarily foreshadowing that there would be a resurgence of inflation.
(A)factors and not necessarily foreshadowing that there would be
(B)factors and not necessarily that it foreshadowed
(C)factors and did not necessarily foreshadow
(D)factors, while not necessarily a foreshadowing of
(E)factors, while it did not necessarily foreshadow that there would be
Ans:C
想請問D、E