The term "threat alert system" in the context refers to the body's natural response to threats or stressors, known as the fight-or-flight response. The sentence suggests that while one can't control this system directly, they can manage their response by using techniques to calm their brain. Thus, the best interpretation of the phrase is a system that prepares the body to fight. ;
The phrase "threat alert system" refers to the body's natural response to stressors known as the fight-or-flight response. This system prepares the body to either confront or avoid danger, but it can be managed through various techniques. The best option is C. A system that prepares one's body to fight.
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