Caley took a bunch of pictures at her birthday party last week. She wants to share them with her friends. Which of the following choices is a low-risk way to do so?
a using a password-protected website and making sure only specific friends can see it
b posting them on an unsecured website that she knows her friends will visit
c e-mailing them to a group e-mail list that includes her friends a few others
d posting the pictures on a social media site and tagging her friends