Which of the following statements about mental health care in the US is the most accurate? A. Costs for mental health care have remained constant while the costs of physical health care have risen dramaticallyB. Almost all insurance plans offer the same benefits for mental health treatment as they do for the treatment of physical health problems C. Rather than being a single system, the delivery of mental health services is actually a loose network of various services D. Psychiatrists provide the vast majority of mental health services in the US