Anna's computer has slowed down. How might she improve her computer's performance? Select one of the options below as your answer:

ACall for professional help.
BRun the Disk Defragmenter.
CPut the computer in Standby mode.
DInstall new programs on the computer.

Verified Answer :

Calling for professional help would be the best idea, but if you want to solve the problem fast and on your own, the Disk Defragmenter will speed up your hard drive and computer's overall performance by optimizing file system.
c and d don't make any sense. So, the right answer is 
b. Run the Disk Defragmenter.