A technician arrives on site to find that two users who have the same model on Android smartphone are having the same issue with a specific application. Whenever they attempt to launch the application, it fails and gives an error message. Which of the following should the technician do FIRST? 

Answer options:

A. Reinstall the application
B. Roll back the application to the earlier version
C. Clear the application cache
D. Update the OS of the smartphones

D