Answer:
B is "left" of 7000BCE so it must be an event earlier than that.
Only choice that was earlier is People in Peru weave grass into nets and baskets, 8000 BCE.
Explanation:
The correct answer is masaccre
He slaughtered communist party members and workers who supported them in an extermination campaign. The brutal slaughter of communist members led to the civil war, which ended with Mao Zedong communist party victory. He fled to Taiwan and established a rival government.