Melanie believes that her boyfriend enjoys far more benefits from their relationship than she does, even though she believes that she spends more time, effort, and resources in their relationship. Clearly Melanie believes that her relationship with her boyfriend lacks:

the biopsychosocial approach was developed at rochester decades ago by drs. the biopsychosocial approach systematically considers biological, psychological, and social factors and their complex interactions in understanding health, illness, and health care delivery.

explanation:

a is the answer because it just is

united states government;