You have an Exchange Server 2010 organization.

You need to prevent users from changing their password using Outlook Web App (OWA).

What should you do?

A.
From the Exchange Management Console (EMC), modify the authentication settings of the ECP virtual directory.

B.
From the Exchange Management Console (EMC), modify the segmentation settings of the OWA virtual directory.

C.
From the Internet Information Services (IIS) Manager, modify the application settings of the ECP virtual directory.

D.
From the Internet Information Services (IIS) Manager, modify the authentication settings of the OWA virtual directory.