I'm not sure but I think A
It dried up.
North Africa used to be a fertile grassland, even swampy in some spots, 12,000 years ago. By 1000 BC (actually quite a while before) it had dried up into what is the the largest desert i the world: the Sahara.
The council-manager form is a system of local government, which combines a strong political leadership of elected officials who make up the council, with a nominated local government manager. The city council serves as the primary legislative body of the city, and appoints the chief executive officer, who is called a city manager, whose duty is to monitor daily municipial affairs, implement a budget, implement city politics and legislative initiatives. In the council-manager government, the council members are the leaders and policy makers, elected as community representatives, The manager is elected by the council, and is council is responsible to the council. If the manager does not respond to the wishes of the council, then the council has the authority to terminate the manager at any time. In this sense, the tasks performed by the manager are tested every day. The conclusion is that all power is centralized in the elected council.
The correct answer is B.
The Boeing B-29 was used by the United States Air Force towards the end of World War II, as well as in the Korean War. They were only produced from 1943-1946, right at the end of the war. However, they were used by the USAF and Royal Air Force until 1954. The entire line (including the revised version, the B-50) was retired in 1960.
Therefore, the answer is A, since production of the plane stopped in 1946, one year after the end of WWII.
