When thinking about OPSEC in the realm of GRT, you should base risk on what?

The correct choice emphasizes the importance of evaluating the possibility of compromise when considering Operations Security (OPSEC) in Ground Reconnaissance Training (GRT). In OPSEC, the fundamental goal is to protect sensitive information that could be exploited by adversaries, which directly relates to the risk assessment of operational activities.

By focusing on the possibility of compromise, individuals can identify vulnerabilities in their operations that could lead to unauthorized disclosure of critical information. This assessment helps in implementing effective countermeasures to safeguard sensitive data. Understanding the likelihood of exposure enables personnel to prioritize their protective efforts based on the potential impact of any compromise on the overall mission.

While the other options may relate to aspects of operational security and mission planning, they do not specifically address the core principle of assessing risk based on the potential for compromise. For instance, providing information to the host government or the specifics of the mission profile might shape operational decisions but do not directly inform the assessment of risk concerning the exposure of sensitive information. Similarly, operational readiness pertains more to the preparedness of the team than to how risks are evaluated in terms of information security.