Immediate provocation for the japanese attack on pearl harbor was
a) the internment of japanese citizens living in the united states.
b) an american-led oil embargo against japan.
c) resentment over the unequal treaties imposed on japan in the nineteenth century.
d) resentment that japan has not gotten more of the territorial "spoils" at the paris peace settlements after world war i.
e) fears of an american attack on the japanese homeland.