Related to ease of use, organizations can focus on their app, not their infrastructure, because Cloud Spanner:

Distributes organizations’ load-balanced resources in single or multiple regions around the globe, close to their users, to help them meet high-availability requirements.
Eliminates complex database tasks so there is no need to engineer a complex replication or backup infrastructure.
Reduces network latency, oﬄoads some work from the origin server, and reduces serving costs.
Provides a layer of logic that organizations can write code in order to access other services.

The correct answer is:

Eliminates complex database tasks so there is no need to engineer a complex replication or backup infrastructure.

Sources: Google Cloud Platform Business Professional Accreditation Certification Course

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