The healthcare system in the United States is under great financial pressure. Because of this reality, which of the following therapeutic approaches is MOST likely to expand?

A) Psychoanalysis.
B) Couples therapy.
C) Group therapy.
D) Electroconvulsive therapy.

Group therapy is the most cost-effective therapeutic approach as it allows multiple patients to receive treatment at the same time, reducing the cost per person. This makes it more likely to expand in a financially strained healthcare system. Psychoanalysis and couples therapy tend to be more time-consuming and expensive, while electroconvulsive therapy is a specialized, high-intensity treatment that is unlikely to be used more frequently due to its potential risks and high cost.