PLZ HELP What was President Washington's most important contribution to his country?

A.) President Washington's most important contribution to his country was the chopping down of the cherry tree.
B.) President Washington's most important contribution to his country was the example of virtue, excellence, and humility that he set during his many years of service.
C.) President Washington's most important contribution to his country was the great family sacrifices he was willing to make for this country.
D.) President Washington's most important contribution to his country was the extent of his political insight in foreign policy.
E.) President Washington's most important contribution to his country was his military wisdom and actions.