A user cannot open several apps on a cell phone and takes the device into a repair shop. What is one possible cause for this situation?

A user cannot open several apps on a cell phone and takes the device into a repair shop. What is one possible cause for this situation?

• The apps that do open are using too many resources.
• The apps do not have the required root-level permission to operate.
• The apps were installed on a memory card and the card has been removed.
• The apps are in an area of memory storage that is corrupt and can no longer be use
  

  Explanation: When several apps will not open, the apps might have been moved between storage options or installed to a flash memory card that has been removed. Reinstall the apps or reinsert the memory card.