When an adult is under a great deal of stress, he is refusing to leave his bed and engage in normal day-to-day activities. What defense mechanism is used by him?

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E6 Psychology Applied Sreevani 5e p. 67-69
E6 Robert Boland, Marcia L. Verduin - Kaplan and Sadock's Comprehensive Text of Psychiatry-Wolters Kluwer Health (2024) (pp 1-16525 of 16525) p. 2994-2996
Practise the full RUHS, Jaipur, PB B.Sc Nursing Entrance-2019
Attempt every question from this paper in a timed mock, then review the full solution for each one.