Security well known terms Choose 2

A.
Trojan

B.
Phishing

C.
Something LC

D.
Ransomware

Explanation:
BD
The following are the most common types of malicious software:
+ Computer viruses
+ Worms
+ Mailers and mass-mailer worms
+ Logic bombs
+ Trojan horses
+ Back doors
+ Exploits
+ Downloaders
+ Spammers
+ Key loggers
+ Rootkits
+ Ransomware
Source: Cisco Official Certification Guide, Antivirus and Antimalware Solutions, p.498
If the question is asking about software then A and D are correct. But as it asks about security terms that are
well known I suppose B and D could be chosen.