What two individuals must be physically present and capable of influencing the conduct of training throughout the entirety of the event?

The correct answer emphasizes the importance of having both Safety Officers and Training Instructors physically present during training events. The presence of Safety Officers is crucial as they are responsible for ensuring that all safety protocols are followed, mitigating risks, and addressing any potential hazards that may arise during training. Their influence helps maintain a safe environment for all participants.

Training Instructors, on the other hand, are essential for guiding the training process, providing instruction, and facilitating exercises. They possess the expertise needed to effectively deliver the training content and ensure that participants are engaged and understand the material.

Together, these two roles work in tandem, ensuring that safety is prioritized while also achieving the training objectives. This combination of safety oversight and instructional leadership is critical for a successful training event.

The other options do not encapsulate both of these vital roles in the same way. For example, while a Commanding Officer and Range Manager play important roles within the overall scope of operations, they may not be directly engaged for the full duration of training activities. Similarly, Safety Managers and Trainees or Observers and Supervisors may not collectively influence training in the same direct and impactful manner as Safety Officers and Training Instructors.