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Which two AWS services support transactional updates to ensure that both users' records are updated atomically in a gaming platform's item trading feature, with the ability to roll back if any part of the transaction fails?
A
Amazon DynamoDB using the ConsistentRead parameter
B
Amazon ElastiCache for Memcached within a transaction block
C
Amazon DynamoDB with Transact* operations
D
Amazon Aurora MySQL within a transaction block
E
Amazon Athena within a transaction block
