Which of the following data replication methods is utilized by Amazon RDS multi-AZ?

Answer options:

A.Multi-master replication
B.Lazy replication
C.Synchronous replication
D.Asynchronous replication

Answer: C
Option C is CORRECT because, in a Multi-AZ deployment, the primary Amazon RDS instance is synchronously replicated to a standby replica instance in a different Availability Zone.
Reference:
https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Concepts.MultiAZ.html