What three items should be recorded using authorized symbols or abbreviations?

The choice that specifies clearances, reports, and instructions aligns with standard practices in air traffic control documentation. Each of these items is crucial for maintaining clear communication and safety in aviation operations.

Clearances are official permissions issued by air traffic control for an aircraft to proceed under specified conditions, often using specific language and symbols to ensure clarity and reduce the potential for misunderstanding. Reports pertain to various types of information that pilots and controllers need to exchange, including aircraft positions, intentions, and changes in flight status, again typically using standardized abbreviations to promote efficiency. Instructions are directives given to pilots, which include information on headings, altitude changes, and maneuvers.

Using authorized symbols or abbreviations for these items helps in maintaining consistency and prevents errors in communication that could lead to safety incidents. In contrast, while weather, traffic, emergencies, flight plans, altitudes, routes, aircraft types, pilot names, and destinations are important in aviation, they do not fall under the same standardized categories for abbreviation or symbol usage in the context of air traffic control documentation.