You have a deployment of Dynamics CRM 2015 Workgroup Server 2015. After a recent Dynamics CRM failure, users were unable to access Dynamics CRM data for several days. You need to implement a high availability solution for the deployment. What should you do first?
A. Modify the URL of the Discovery Web Service server role.
B. Configure Windows Server Failover Clustering. – multiple servers will have crm installed on them, can be switched
C. Modify the product key of Dynamics CRM 2015.
D. Configure Network Load Balancing (NLB).