Question

which rule should be followed to stay safe online?
○ keep inappropriate messages private.
○ avoid sharing photos with anyone online.
○ keep screen names private.
○ ask an adult for permission to download.

Explanation:

• For "Keep inappropriate messages private": Inappropriate messages should not be sent or kept private; they should be reported or avoided, so this is incorrect.
• For "Avoid sharing photos with anyone online": It's not necessary to avoid sharing photos with everyone (e.g., sharing with trusted friends/family is okay), so this is too extreme.
• For "Keep screen names private": Screen names are often public in online platforms, and keeping them private isn't a key safety rule.
• For "Ask an adult for permission to download": Downloading files can have risks (malware, inappropriate content), so asking an adult for permission is a good safety rule.

Answer:

D. Ask an adult for permission to download