Identify the abnormal behaviour referring to the 4D's -

The correct answer is Option (4) → Reema was laughing loudly at her mother’s funeral, running up and down the stairs, throwing objects at the gathered mourners

Option (1) Monica was talking to herself while she was praying — Incorrect. Speaking aloud is a normal part of prayer. It is not deviant in that setting, causes no distress and harms no one.

Option (2) Seema, a traffic police women was standing in the middle of the road waving her arms mechanically — Incorrect. Waving her arms in the middle of the road is Seema’s job of directing traffic. It is expected, useful behaviour.

Option (3) Sheeba started dancing with joy in a restaurant she had visited, as she got a job confirmation call on her phone — Incorrect. Dancing in a restaurant is unusual, but it is a brief and understandable reaction to good news. It does not upset her, keep her from functioning or put anyone in danger.

Option (4) Reema was laughing loudly at her mother’s funeral, running up and down the stairs, throwing objects at the gathered mourners — Correct. Most definitions of abnormality share the ‘four Ds’: deviance, distress, dysfunction and danger, and Reema’s behaviour shows all four: laughing at a funeral is deviant (extreme and unsuited to the situation), it is distressing to the mourners, she cannot carry on in a constructive way (dysfunction), and throwing objects at people is dangerous.