Final answer:
Deploying virtual machines to two or more scale sets does not ensure availability of services if a single data center fails.
Step-by-step explanation:
The answer to the question is b) FALSE. Deploying the virtual machines to two or more scale sets does not guarantee the availability of services if a single data center fails. Scale sets distribute virtual machines within a single data center, not across multiple data centers.
If a single data center fails, all the virtual machines within that data center will become unavailable, regardless of whether they are deployed in different scale sets.