Question

for what purpose is a screen name used?
to confuse scam artists
to conceal one’s location
to protect one’s identity
to unlock online accounts

Explanation:

A screen name (also known as a username or handle) is primarily used to protect one's identity online. It allows individuals to engage in online activities without revealing their real - life identity directly. Scam artists are not the main target of screen names (so the first option is incorrect), concealing location is more related to privacy settings or tools like VPNs rather than screen names (second option incorrect), and screen names are not used to unlock online accounts (fourth option incorrect).

Answer:

C. to protect one’s identity