An engineers organization system is registered in the following manner: . The engineer created a new indicator type fordetecting systems using regex. The engineer would now like the username to be created as a separate User indicatorautomatically once a system is found.What is the most efficient way for the engineer to achieve this?
A. Create a custom indicator field named ‘username’ and link it to the internal system indicator
B. Change the reputation command for the internal system indicator type
C. Create a new indicator type of the internal username and set a formatting script to extract only the username
D. Create a new indicator type of the internal username and have the regex included on any string that has dash at the beginning