If you can log into a website to add, edit, or delete content that has been added by you or another user, you are most likely using a(n)
a. wiki application
b. twitter account
c. blog window
d. facebook account

A Wiki application. Wikipedi.a (or any Wiki, for that matter), can be added to, modified or deleted by anyone who visits the site; it is a collaborative contribution.

A Twitter account, blog window, and a Facebook account, all require a secure password that only you would know. So unless you got hacked or something, what you have described would not apply to these three.

Ithink it with medical history because people can see thing that they would not would be able to in real life.

Ihave never used that feature before but i think it's true