Why is pasting commands from untrusted sources into your Terminal dangerous?

The correct option is:

• It could run malicious code that compromises your system

Pasting commands from untrusted sources like emails into your computer's Terminal is dangerous because the Terminal executes commands with system privileges. If the commands are malicious, they can be used to install malware, delete files, steal personal data, or take control of your computer, thereby compromising your system.