Which feature can Microsoft Azure offer to lower the probability of a failure that disrupts business operations?

High availability

Explanation: A highly available cloud application implements strategies to absorb the outage of the dependencies like the managed services offered by the cloud platform. Despite possible failures of the cloud platforms capabilities, this approach permits the application to continue to exhibit the expected functional and non-functional systemic characteristics. Reference: Disaster Recovery and High Availability for Azure Applications https://msdn.microsoft.com/en-us/library/azure/dn251004.aspx