Data undergoing encryption is correct because it is not one of the three primary data states used in security frameworks.

Security frameworks and common guidance categorize data by state as Data in motion, Data at rest, and Data in use. These labels describe where and how data exists rather than what process is being applied to it, so Data undergoing encryption describes an operation that can occur in any state rather than a separate primary state.

Data in motion is wrong because it is a standard primary state and it refers to data being transmitted across networks or between systems, so it is not the answer to this question.

Data at rest is wrong because it is a standard primary state and it refers to data stored on disks, databases, backups, or other persistent storage, so it is not the answer.

Data in use is wrong because it is a standard primary state and it refers to data being processed in memory or on a CPU while applications operate on it, so it is not the answer.

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