Answer:
a. George Washington.
Step-by-step explanation:
Just before retiring from his second term presidential responsibilities President George Washington gave the famous farewell address in which he warned the citizen of the United States against the factionalism policies of political parties. He said that it is important to be aware of the regional parties which should not disturb the harmony and unity of the United States. Though his speech includes important issues like education, morality, foreign policies, etc but it was mainly concern to justify the eight-year governance and preparing ground for the republicans for their next presidential elections.