In what training activities may extra instructors be needed to observe safety?

The correct answer focuses on training sessions characterized by increased hazards. In these scenarios, the potential for accidents or injuries is higher due to the nature of the activities being conducted. Extra instructors play a critical role in ensuring participant safety by actively observing the training and providing immediate assistance or intervention if necessary. Their presence can help mitigate risks, maintain a safe training environment, and enhance the overall safety awareness of all participants.

In contrast, routine training sessions and sessions with minimal hazards typically require fewer safety observers because the risks involved are lower. Standardized drills, while important, may already have established protocols that can adequately manage safety without needing extra instructors on site. Thus, having additional instructors is most crucial where the likelihood of accidents is heightened.