What is the role of a "line officer"?

The role of a line officer is essential in maintaining a safe shooting environment on the range. A line officer oversees the shooting line and ensures that all safety protocols are followed during shooting activities. This includes monitoring the behavior of shooters, ensuring that firearms are handled safely, and calling for cease-fires when necessary. By maintaining vigilance and enforcing rules, the line officer plays a crucial role in preventing accidents and ensuring that all participants are aware of their surroundings and the proper conduct on the range.

In this context, the responsibilities associated with controlling ammunition distribution, managing range maintenance, and organizing shooting competitions fall under different roles that do not directly relate to the immediate safety of shooters on the line. Therefore, the role of the line officer is specifically focused on overseeing the shooting line to ensure safe practices, making it the correct choice.