Which of the following describes a feeling that can hinder situational awareness in flight?

The feeling that can hinder situational awareness in flight is one that often accompanies complacency or a lack of urgency. "Feel good" can suggest a sense of overconfidence or a relaxed state which can lead to decreased vigilance. In aviation, maintaining a high level of situational awareness is critical for safety because it ensures pilots remain alert to changes in the flight environment, including weather conditions, air traffic, and other factors that may affect flight safety.

While feelings such as "over eagerness" and "insolence" can also potentially impact a pilot's judgment and decision-making, they may do so in a more specific context — for example, over eagerness could lead to taking unnecessary risks, while insolence might manifest as a disregard for authority or established protocols. However, "feel good" encompasses a broader range of complacency that might lead to a lack of attention to important details.

Relaxation, on the other hand, is generally a positive state, provided it does not lead to complacency. The essential aspect here is that "feel good" can manifest as a false sense of security, which can distract a pilot and therefore hinder their situational awareness during flight.