End-to-End Encryption in the given context covers which scenario?

• A. Data that's encrypted only during transmission
• B. Data that's being encrypted while both at rest and in motion
• C. Data that is decrypted by every intermediary
• D. Data stored unencrypted in the cloud

Answer: (B)

End-to-end encryption means the data is encrypted from the sender’s device and remains encrypted until it reaches the recipient’s device, so no intermediary can read it. In practice, this protects content both while it’s moving across networks (in transit) and while it’s stored on servers (at rest). That combination—encryption during motion and storage—fits the scenario described. The other ideas would allow exposure at some point (like being readable in transit only, or by intermediaries, or while stored unencrypted), which end-to-end encryption does not permit.