How many operator/primary station license grants may be held by any one person?

The correct answer is that any one person may hold only one operator/primary station license grant. This regulation ensures that each operator is accountable for their station and its operations under a single license, promoting a streamlined process for both the operator and regulatory authorities. It helps maintain order within amateur radio services and avoids complications that could arise from an individual holding multiple licenses, which could lead to confusion regarding responsibilities and regulations.

The other answers suggest various circumstances under which a person could hold multiple licenses. However, the structure is specifically designed so that licensing is clear and manageable, thereby maintaining an organized amateur radio environment. Holding one license simplifies oversight and compliance with regulations, making it easier for both operators and enforcement agencies to track usage.