You have been asked to create a Community leveraging Out-of-the-box login, logout, self-registration, and error pages. Would you recommend the use of Community Builder or Force. com site?

A) Neither, only Customer and Partner Portals currently support error pages
B) Community Builder but only with the Napili or Koa template
C) It doesn't matter, both will work
D) Community Builder
E) Force. com Sites

Option (C) is the correct answer of this question.

Explanation:

You were asked to create a Group that leverages Out - of--authentication, logout, self-, and pages of errors. Recommend to use the Community Builder or the Force.com website It doesn't matter, both will work .Hosted in Force.com servers, there are no problems with date compatibility.

Force.com Sites allows companies to develop and launch ftp servers and web browsers that are exclusively compatible with the company at Cisco–without needing users to sign in with a login.

Other options are incorrect they are not related to the given scenario.

none because it's so obvious