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Why are users receiving duplicate emails from an application using Amazon SQS and AWS Lambda with Amazon SES? (Choose two possible reasons.)
A
At-least-once delivery is a feature of Standard SQS queues.
B
Exact-once processing is not guaranteed by Standard SQS queues.
C
Misconfiguration in Amazon SES DKIM authentication.
D
SQS visibility timeout may be too short compared to Lambda execution time.
E
High Amazon SES bounce rate.
