Final answer:
The device authorized on the PMD for an individual exposed to hostile action depends on military or government regulations and may include emergency medical devices or protection equipment.
Step-by-step explanation:
The question relates to devices authorized on the Personal Mobility Device (PMD) after an individual has been exposed to hostile action.
In the context of military or tactical environments, personal protection and emergency medical devices may be authorized depending on the regulations of the particular military or government entity.
For example, if someone is exposed to a hostile chemical agent, a Personal Decontamination Kit might be authorized on the PMD.
However, it is crucial to refer to specific military guidelines or instructions that apply to the situation to determine the appropriate device or action.