A bank is designing an online customer service portal where customers can chat with customer service agents. The portal is required to maintain a 15-minuteRPO o...

A bank is designing an online customer service portal where customers can chat with customer service agents. The portal is required to maintain a 15-minuteRPO or RTO in case of a regional disaster. Banking regulations require that all customer service chat transcripts must be preserved on durable storage for at least7 years, chat conversations must be encrypted in-flight, and transcripts must be encrypted at rest. The Data Loss Prevention team requires that data at rest must be encrypted using a key that the team controls, rotates, and revokes.
Which design meets these requirements?