You need to recommend a disaster recovery solution for the CRM application that meets the business requirements. What should you recommend?

Backup and restore using Windows Azure Storage is a robust and cost-effective disaster recovery solution. It allows for critical data to be regularly backed up to a highly durable and available cloud storage service, ensuring that the CRM application can be recovered to a previous state in the event of a localized or regional disaster, fulfilling a basic DR requirement.

Log shipping is a warm standby solution that involves more operational overhead for failover and is primarily focused on data synchronization rather than a comprehensive backup and restore strategy across regions for disaster recovery.

AlwaysOn Availability Groups provide high availability and disaster recovery with minimal downtime, but they represent a complex and typically more expensive solution, often overkill if the business requirements can be met with a simpler backup and restore approach.

Database mirroring is an older high availability technology in SQL Server that has been deprecated in favor of AlwaysOn Availability Groups and does not inherently provide a complete disaster recovery solution across geographical regions.