Answer:
B. Iraq War, Conflict between Iraq and Iran
Slavery started because people couldn't do their jobs themselves, so they had other people do it for them.
the answer is Germany, Italy and Japan
Answer:
Bloomberg took the brunt of the fire after spending his way onto the debate stage for the first time, but everyone had to take their turn playing offense and defense. Warren critiqued every other candidate’s health care plan in a single answer, injecting a rush of energy into her campaign. Pete Buttigieg and Amy Klobuchar continued a running battle that has built over several debates, while Biden lit into Bloomberg over Obamacare and Sanders faced questions about his policy disagreements with a powerful Nevada labor union.
(If you want I can make the words less complicated or advanced and add sentences.)