Answer:
D They were located in the middle of major routes between different regions.
Explanation:
Trade had always existed between Europe and Asia, and the Middle East was where the trade routes would inevitably have to pass through. The middle passage of many trade routes such as the Silk Road had to pass directly through middle eastern kingdoms.
The correct answer is: "the Marshall Plan".
The Marshall Plan was a US foreign policy enacted in 1948 and which consisted on directing financial aid to rebuild Western European countries, both winners and losers of WWII. Such reconstruction aimed to boost Western economies by providing money to rebuilt their infraestructure.
Every country in Western Europe would receive such funds, as long as they positioned themselves as allies in the US fight against the spread of communism, after the Soviet Union had extended its influence over most countries in Eastern Europe.
Um... Is this a question?