Regions and Availability Zones in AWS

Question:
Which statement about Regions and Availability Zones is correct?

1. An Availability Zone can span multiple Regions
2. Each Region consists of four Availability Zones
3. Each Region consists of more than one Availability Zone
4. Each Availability Zone consists of at least one Region

Answer:
C - is the correct answer. Each Region consists of more than one Availability Zone. Availability Zones cannot span multiple Regions. Regions are not inside Availability Zones; Availability Zones are in Regions