Answer:
D. Government interference that lowered crop values
It was "John Smith" who issued strict punishment and a system whereby colonists could be given land if they agreed to farm it in the colony of Jamestown, since Smith was known as the "savior" of the Jamestown colony in this regard.
The Harding's campaign promises of a return to "normalcy," supported the adoption of an isolationist policy and a series of measure that would return America to the way it was before the war; this idea appealed to voters who were affected by the tension and fighting during WW I and all the damages it had caused, and to those who wanted to return to the way of life before World War I, adopt an isolationist policy rather than getting involved in international treaties or organizations (such as the League of Nations) and to focus on domestic issues.
Answer:
After the French and Indian Wars, the British Empire became more powerful in terms of land, but was also in a difficult economic condition.
Because of this, the British levied more taxes on the American colonies, which angered the colonists who were used to relatively low levels of taxation.
The British also wanted to control more aspects of American colonial life. The monarchs had become suspicious of colonial independence, and they wanted tighter control over the colonies.