According to Washington, morality is an extremely important virtue in the political field and popular government. Therefore, option (4) is correct.
Morality refers to the sets of beliefs, and principles that are considered right and acceptable by society. The morals of an individual help him or her to take a just action in the right direction.
The morals of a person in the political field affect a huge number of people and that’s why Washington considered it an important virtue in public life.
Hence, option (4) is correct.
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