Although producer prices rose at an unexpected 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