Which item is part of the safety measures a range safety officer must ensure during training events?

The correct answer focuses on the essential responsibility of a range safety officer, which is to ensure compliance with safety protocols during training events. This includes making sure that all participants understand and follow established safety guidelines to prevent accidents and ensure a secure training environment. Safety protocols encompass various measures, such as wearing appropriate personal protective equipment, adhering to range rules, and following instructions regarding the handling and use of firearms and ammunition. By prioritizing compliance with these protocols, the safety officer plays a critical role in maintaining the safety of all individuals on the range.

Other options, while important in their own contexts, do not specifically address the immediate safety responsibilities of a range safety officer during training events. Proper inventory control and ammunition supply chain management relate more to logistical planning and resource management, whereas participation analysis of trainees pertains to assessment and training effectiveness rather than direct safety measures. Therefore, the emphasis on compliance with safety protocols directly aligns with the core duties of ensuring a secure training environment.