Which distance is considered a minimum for maintaining a reactionary gap?

The correct choice refers to the distance of 4-6 feet as the minimum for maintaining a reactionary gap. This distance is based on the need for personnel to have adequate space to react effectively in situations that may escalate quickly.

Maintaining a reactionary gap of 4-6 feet allows team members to avoid potential aggression or physical confrontations while still being close enough to observe and assess a situation. This distance also provides sufficient room to maneuver if necessary, offering both safety and tactical advantages.

A smaller gap, such as 2-4 feet, compromises the ability to react effectively, as it places personnel too close to potential threats. Conversely, larger gaps, like 6-8 feet or 8-10 feet, may hinder communication and coordination among team members during boarding operations. Thus, 4-6 feet is deemed the most effective range for a reactionary gap, balancing safety and responsiveness.