Which of the following theories is part of Orem's self-care deficit theory of nursing?

Orem's self-care deficit theory of nursing includes the theory of self-care as a fundamental component, which emphasizes the importance of individuals performing self-care to maintain health and well-being. Orem posited that when individuals cannot meet their self-care needs due to limitations resulting from health issues, this can create a self-care deficit.

The theory of self-care focuses on the actions that individuals take to preserve or improve their health, including education about health behaviors, motivational support, and ensuring access to resources that enable self-management. By understanding this theory, nurses are equipped to assess the self-care abilities of their patients, identify deficits, and implement appropriate nursing interventions to promote better health outcomes.

The other theories listed do not align specifically with Orem’s principles. The theory of emotional support, the theory of patient autonomy, and the theory of mental health promotion are not integral to Orem's framework and focus on distinct aspects of nursing and healthcare that address support mechanisms, empowerment, and mental health respectively. Therefore, the theory of self-care is the appropriate and relevant choice in the context of Orem's self-care deficit theory.