A person moves away and assumes a new identity, forgetting their old identity; this is a feature of:

Correct option is C

Dissociative fugue involves sudden, unexpected travel away from one’s home or workplace, coupled with an inability to recall one’s past and assumption of a new identity. It is a rare psychiatric condition usually triggered by trauma or stress and is classified under dissociative disorders.
Explanation of options: (a) ✘ Dissociative amnesia – Involves memory loss without identity change or travel. (b) ✘ Derealisation – Perception that the environment is unreal or distorted. (c) ✔ Dissociative fugue – Includes memory loss, travel, and new identity formation. (d) ✘ Depersonalisation – Feeling detached from one’s own body or mental processes.