Which stress reaction may lead an individual to "lock up" under pressure?

The choice highlighting "freeze" refers to a stress reaction where an individual may become immobilized or feel paralyzed in response to a high-pressure situation. This reaction occurs as part of the fight-or-flight response, which encompasses the body's instinctual reactions to perceived threats. When confronted with overwhelming stress or danger, some individuals may find themselves unable to act; this is often described as "locking up."

The "freeze" response can be protective in nature, allowing an individual to assess their situation more carefully, but it can also lead to a detrimental lack of response when immediate action may be required. Understanding this reaction is essential, especially in high-stress environments like corrections, where quick decision-making is critical. The other reactions—fight and flight—are characterized by active engagement or escape, while eustress refers to positive stress that can motivate and energize an individual, which does not result in a "locking up" response.