Which statement best identifies the official core values of the United States Air Force?

• A. Integrity First, Duty Before Self, Excellence In All We Do
• B. Integrity First, Service Before Self, Excellence In All We Do
• C. Integrity First, Service Before Self, Excellence In All We Do
• D. Integrity First, Service Before Self, Courage In All We Do

Answer: (C)

The main idea being tested is the official United States Air Force core values. The three values are Integrity First, Service Before Self, Excellence In All We Do. Integrity First means acting with honesty and moral courage, even when it's difficult. Service Before Self emphasizes placing the mission and the welfare of teammates and the country ahead of personal interests. Excellence In All We Do calls for high standards, continuous improvement, and professionalism in every task. These three together guide daily behavior, leadership, and decision-making in the Air Force. The other options differ by substituting different words or altering the final value, so they do not represent the official set.