Gina Recently Downloaded Some Online Music on Her System

Multiple Choice

Gina recently downloaded some online music on her system.Without her knowledge,a type of computer virus downloaded itself along with the music.In the next few days,the virus slowed down her system and reproduced itself onto her roommate's system and others' in the network.In such a scenario,Gina's system is most likely to be affected by a ____.

A) zombie
B) plotter
C) worm
D) Trojan horse