Abnormal behavior is the statistically uncommon pattern of behavior within a particular culture.
The psychological abnormal people are not able to perform daily life functions with ease and accuracy.
A person may experience emotional distress because he is not able to perform his daily life functions which a normal person can perform.
If a person is in emotional distress his normal routine work will also be disturbed due mental stress.
There will be statistical variation in routine works which he performs in daily life.
The correct answer is D. Statistical Variation
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