A company wants to implement a policy that employees should only use the CRM on Demand application when they are in the company office. What is the best way to implement this policy in the application? 

Navigate to the Company Profile page and change the company Authentication Type to Single- Sign on Only. 

Monitor the Sign-In Audit to identify users that do not conform to the policy and Inactivate their user credentials. 

Use the Company Administration > Security Settings page to enter the specific IP address ranges for the company network. 

Change the sign-in page for user authentications to a page behind the company firewall.