What two areas are authorized for the use of CS within the RTAs?

The correct choice highlights the specific locations where CS (tear gas) can be utilized within the RTAs (Regulated Training Areas) as part of training protocols. Camp Hansen and Camp Schwab are recognized as authorized sites within the Marine Corps training infrastructure where CS can be deployed for various training exercises and scenarios. This usage aligns with operational readiness training, ensuring personnel are familiar with conditions they may encounter in the field.

In this case, Camp Hansen and Camp Schwab have the necessary facilities and environmental considerations to safely conduct training involving CS agents, making them the appropriate choices. Other locations mentioned, while they may have their own training capabilities, do not share the same authorization for the specific use of CS agents in the context of RTAs, establishing why those alternatives are not suitable.