Two Friends Buy the Same Android Smartphone from the Same

Multiple Choice

Two friends buy the same Android smartphone from the same vendor on the same day.One particular application will not install on either phone.The friends take their phones to the store where they bought them and go to the service desk.What is the first thing the technician should do?

A) Clear the cache
B) Reinstall the application on both phones
C) Replace both phones
D) Check whether the phones have been rooted