What should you do first?

You have a Microsoft Exchange Online tenant named contoso.com.

The Exchange configuration contains the following public folder hierarchy:

– Support

– Messages

– Calendar

You create a distribution list named [email protected].

You need to add the Messages public folder to the HelpDesk distribution list.

What should you do first?
A . Mail-enable the Support public folder
B . Create a new public folder mailbox
C . Mail-enable the Messages public folder
D . Upgrade HelpDesk to a Microsoft 365 group

Answer: C

Explanation:

Reference: https://docs.microsoft.com/en-us/exchange/collaboration/public-folders/mail-enable-or-disable?view=exchserver-2019