<span>The art or science of cultivating the ground, including the harvesting of crops, and the rearing and management of livestock; tillage; husbandry; farming.
So C.</span>
I would say earning our independence from Britain and winning the civil war
The most important duty of the president is to ensure that all laws are to be faithfully executed. It is impossible for a country to be secure without all proper laws in place. For the second question, the answer is 8 years. A president can service for 2 terms of 4 years as an acting president.