Final answer:
False, Availability zones are not supported in every Azure region, thus you cannot implement them universally across all regions where Azure resources are deployed.
Step-by-step explanation:
The statement that if you have Azure resources deployed to every region, you can implement availability zones in all the regions is false. Not all Azure regions support availability zones. Availability zones are unique physical locations within an Azure region, providing redundant power, cooling, and networking. To achieve the best availability and resilience, services should be deployed across multiple zones within a region that supports them. However, Azure has made availability zones available in many regions, they are not universally present in every single region.