Answer:
The events of the 1980s and 1990s helped to maintain world peace were the Persian Gulf war, the Iran-Iraq war, Lebanon war, the bombing of Libya, and the last stage of the cold war.
Explanation:
These events were the major events that allowed world peace to be kept in between the 1980s and the 1990s, however, they did it because they threatened it. It is very complicated, but the reasons are that these weren't high scalation conflicts, they were local conflicts and didn't clash the major party's that could trigger a world conflict directly. They only participated indirectly, by providing support to the participating party's.
Susan seems to be exhibiting hyperactivity or anxiety.
Companies like Uber and Airbnb uses this kind of economic model. For Uber Taxi, unlike the traditional taxis that are owned by companies, the customers/passengers are serviced by private drivers who owned the cars used. For Airbnb, it allows customers/vacationers to rent a place or a room owned by private individuals compared to hotels or resorts which are owned by companies or corporations.
Manifest Destiny refers to the United State's unyielding believe that the country will span from the Atlantic Ocean to the Pacific Ocean. Therefore, the answer is A.