There are five regions in Google Cloud: Asia, Australia, Europe, North America and South America.
Which statement below is correct with regards to ‘Region’?

Answer options:

A.A Region is a collection of sub-regions.
B.A Region consists of multiple zones.
C.A Region consists of multiple data centers.
D.Every Region has one data center.

Correct Answer: B
Option A is incorrect. Sub-region is an invalid option, and this concept is not there in Google Cloud. Google Cloud Platform has Regions, Zone and Data Center.
Option B is correct. Every Region consists of multiple zones.
Option C is incorrect. Every Zone consists of one or multiple data centers.
Option D is incorrect. The Region consists of Zones, and Zones consist of data centers.
Reference:
https://cloud.google.com/docs/overview#gcp_resources