It's b if not try c but I'm 100% sure that it is b.
Answer:
1. tells readers important information the characters do not know
dramatic irony
2. hints at what is to come in the action of a story
foreshadowing
3. depicts events that occurred before the events are currently
flashback
4. unfolding in the story
develops the sequence of events in a story
plot
Explanation:
The correct answer is: Osama Bin Laden.
Before he turned against the US, Osama bin Laden had a common enemy with the US: the Soviets. He was with the Mujahadeen in the 1980, when the Mujahadeen were a resistance to the Soviet Attempts to control Afghanistan. The US supported the group because they felt threatened by the Soviet Union.
the correct answer is D
it was related to the food supply
The early humans moved out Africa when the climatic condition in the region of East Africa Rift valley,where earliest stone tools were discovered became increasingly dry. Hunting as a source of food also became scarce as animals also spread out of the region. Subsequent strains in areas where they conquered led them to migrate further across the globe.
Https://en.wikibooks.org/wiki/US_History/Print_version