Final answer:
Status-of-forces agreements define the legal status of US personnel stationed abroad, providing legal protections and outlining obligations as well as local law applications.
Step-by-step explanation:
The activity that is an element of status-of-forces agreements is: c. Define the legal status of US personnel stationed abroad. Status-of-forces agreements (SOFAs) are treaties or agreements between a host country and a foreign nation that station military personnel, such as US troops, within the host country's borders. These agreements outline the legal protections and obligations of the foreign military forces while they are present in the host country. They encompass various provisions like the legal jurisdiction over US personnel in case of crimes, how local laws apply to the troops, and how they interface with the local economy and government systems. These agreements are crucial for the operations and presence of US forces in foreign nations, ensuring that both the rights of the servicemembers and the sovereignty of the host nations are respected.