Ok what is the question this is just a statement on what it is eric did.
Abstain from contractions like “couldn’t” or “should’ve” and use “could not” or “should have” instead
Game-theif Trojans is the malware that makes a backdoor into your email account by which you are playing a game or has downloaded it and thus by this all information of user is exposed.
So option D is the answer.
Option A cannot be answer because Trojan does not use files for its purpose.
Option B cannot be a good option because Trojan works in online could.
Option C cannot be a option because Trojan does not need executable to attack your account.