Final answer:
George Washington's Farewell Address is best remembered for his advice against forming permanent alliances with foreign nations, emphasizing national unity and caution against political parties' divisive influence. So, the correct answer is A) Advised against permanent alliances.
Step-by-step explanation:
In his Farewell Address, George Washington advised against permanent alliances with any foreign powers as a significant theme.
This advice was given amidst the context of international relations during his presidency, where he witnessed the emergence of political parties and their impact on national unity.
Washington's administration aimed to implement policies for strengthening the nation based on Alexander Hamilton's ideas, yet the president saw the necessity of setting a precedent for the regular rotation of public officials to maintain the health of the republic.
He emphasized the importance of subordinating sectional and ideological differences to larger national purposes, a reflection of his commitment to national unity and the avoidance of partisan rancor.
So, the correct answer is A) Advised against permanent alliances.