Which of the following represents a common reaction to a threat?

The option indicating "Fight" represents a common reaction to a threat because it aligns with the instinctual responses that individuals may have when confronted with danger. This response is part of the "fight or flight" reaction, which is a physiological and psychological response triggered by a perceived threat. When faced with a potentially harmful situation, a person may instinctively choose to confront the threat in order to defend themselves or protect others. This instinct is rooted in our survival mechanisms and can be seen in both humans and animals.

In contrast, while other reactions like fleeing also represent valid responses to threats, the focus here is on the fight response. The remaining options do not typically signify a direct reaction to a threat. "Friend" does not denote an active response to danger, nor does "Forget," which implies an avoidance of the threat rather than an engaged reaction. Thus, the option of "Fight" accurately captures a fundamental and well-documented behavioral response to perceived threats.