Insight therapies aim to improve psychological functioning by

A) discouraging patients from using antidepressant drugs.
B) using progressive relaxation to reduce patients' anxiety.
C) increasing the client's awareness of underlying motives and defenses.
D) using personality tests to accurately diagnose patients' difficulties.

Insight therapies are focused on helping clients gain insight into their underlying motives and defenses, with the goal of improving psychological functioning. This involves increasing the client's awareness of how their thoughts, feelings, and behaviors are connected and helping them understand how these connections may be contributing to their difficulties. Choice A is incorrect because discouraging patients from using antidepressant drugs is not a goal of insight therapy. Choice B is incorrect because using progressive relaxation is a technique used in relaxation therapies, not necessarily insight therapies. Choice D is incorrect because while personality tests may be used as part of the assessment process, they do not necessarily play a central role in the therapy itself.