Which transactions are available for entering records in the NCIC gun file?

The transactions available for entering records in the NCIC gun file include those specifically designed for handling firearm-related data entry. In this context, the set of codes provided in the choice of EG, ELG, ERG, and EFG is explicitly intended for recording various aspects related to firearms within the NCIC system.

• The code "EG" is commonly used for entering a general gun file record.

• "ELG" typically pertains to entering detailed records for gun licenses or registrations.

• The code "ERG" is often associated with entering gun-related information regarding certain regulatory actions or events.

• "EFG" might be utilized to update or manage existing firearm records.

This specific group of codes aligns directly with the functionalities required for properly maintaining and managing entries in the NCIC gun file. Other options may consist of transaction codes that relate to different types of files or processes in the NCIC system not related to firearms, thus validating why the chosen answer represents the correct set for gun file records.