Megan Has Purchased a Brand New Laptop About Three Months

Multiple Choice

Megan has purchased a brand new laptop about three months ago.Recently,she feels that her computer is operating much more slowly and sluggishly than before.Since purchasing the computer,Megan had been accessing the Internet and had installed a variety of free software.The problem is mostly likely to be

A) a zero-day attack.
B) a virus.
C) a spoof.
D) a sluggishness infection.