Respuesta :

Answer:

Letter codes are shown throughout certain types of programs (such as Live Webcasts) to confirm attendance to complete Certification. For all ACPEN live webcasts and live webcast replays, there will be 3 attendance codes shown per hour.  Each letter will display twice. If the program uses participation codes, there will be an introduction video that plays at the very start of your program explaining how these codes work.

Explanation: