Common Sense refer to the pamphlet by Thomas Paine that convinced many of the need for independence.
Explanation:
Thomas Paine wrote a short book which convinced the colonists to fight for their independence instead of settling their differences with the British Crown. His ideas in the short book were presented to be very clear and it was accessible for many colonists to read and understand in order to fight fir the independence.
Thomas Paine argues that a popular government can be deposed if it is lending deaf ears to the interests of its people and it is permissible to protest against such a despotic government. This fact convinced the colonists to raise on protests against the King.
The Berlin airlift was used during the Cold War to 3. overcome a blockade created by the Soviet Union. The Soviets closed land routes to West Berlin - a region of Germany under the care of Western nations but completely within Soviet controlled East Germany. After closing those routes, West Berlin was cut off and needed supplies some other way. To overcome this, Western forces flew planes over the city and dropped supplies.
B. The formation of a Confucian educational system. Hope this helps you with World History.
The correct answer is B. They had to borrow money to buy seed, fertilizer, and equipment.