$200.$ The web browsing speed on a customer's mobile phone slows down every few weeks andthen returns to normal after three or four days. Restarting the device does not usually restoreperformance. Which of the following should a technician check FIRST to troubleshoot this issue?

A$.$ Data usage limits

B$.$Wi$-$Fi connection speed

C$.$ Status of airplane mode

D$.$ System uptime